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3-(Methoxypolyoxyethylene)Trimethoxysilane
hesheng chemical
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HS Code |
446776 |
| Chemical Formula | C6H16O5Si |
| Molecular Weight | 196.27 |
| Appearance | Colorless to light yellow clear liquid |
| Boiling Point | 193 - 195 °C |
| Density | 1.02 - 1.03 g/cm³ (20 °C) |
| Flash Point | 78 °C |
| Solubility | Soluble in most organic solvents, slightly soluble in water |
| Vapor Pressure | Low |
| Refractive Index | 1.418 - 1.422 (20 °C) |
| Stability | Stable under normal conditions, avoid contact with strong acids and bases |
As an accredited 3-(Methoxypolyoxyethylene)Trimethoxysilane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Historical Development
When I heard about the ancient times, I have the art of studying things. Today, I am talking about 3- (methoxy polyoxyethylene) trimethoxysilane. From the beginning, people are in the field of chemistry, and gradually explore the properties of matter. At the beginning, the cognition was still shallow, and only a few or two characteristics were glimpsed.
And as the years passed, the researchers devoted themselves to studying, analyzing its structure, and knowing the wonders of its composition combination. At that time, the instrument was gradually refined, the analysis was subtle, and its molecular structure was clarified, so that its characteristics could be used in many fields.
Since then, the application path has become wider and wider, in the industry of materials, to help it improve its texture; in the field of science and technology, to increase the ability of equipment. Looking at its historical development, from ignorance and cognition to skillful use, it is the cohesion of everyone's wisdom and hard work, and it is only by advancing step by step that today's achievements can be achieved.
And as the years passed, the researchers devoted themselves to studying, analyzing its structure, and knowing the wonders of its composition combination. At that time, the instrument was gradually refined, the analysis was subtle, and its molecular structure was clarified, so that its characteristics could be used in many fields.
Since then, the application path has become wider and wider, in the industry of materials, to help it improve its texture; in the field of science and technology, to increase the ability of equipment. Looking at its historical development, from ignorance and cognition to skillful use, it is the cohesion of everyone's wisdom and hard work, and it is only by advancing step by step that today's achievements can be achieved.
Product Overview
3- (methoxy polyoxyethylene) trimethoxysilane is also an organosilicide. Its unique properties, both the length of methoxy polyoxyethylene and the quality of trimethoxysilane. Looking at its shape, under room temperature, or as a clear liquid, it has certain fluidity.
This compound has a wide range of uses in the field of materials. Because it contains polyoxyethylene segments, it has good hydrophilicity and can increase the affinity of materials with water. Trimethoxysilane groups enable it to react with the surface of a variety of substrates and adhere firmly. For example, in the preparation of paints and adhesives, adding this substance can optimize the adhesion and water resistance of products. It can also be used as a surface modifier to improve the surface properties of materials to meet different needs. It is a key product in material research and development.
This compound has a wide range of uses in the field of materials. Because it contains polyoxyethylene segments, it has good hydrophilicity and can increase the affinity of materials with water. Trimethoxysilane groups enable it to react with the surface of a variety of substrates and adhere firmly. For example, in the preparation of paints and adhesives, adding this substance can optimize the adhesion and water resistance of products. It can also be used as a surface modifier to improve the surface properties of materials to meet different needs. It is a key product in material research and development.
Physical & Chemical Properties
今有一物，名唤3-(甲氧基聚氧乙烯)三甲氧基硅烷。此物质性，关乎理化之质，颇为重要。其具特殊之化学结构，甲氧基与聚氧乙烯相连，又连三甲氧基硅烷，此结构使物性独特。从物理性质观之，其或具一定溶解性，于某些有机溶剂中可溶，因聚氧乙烯链之存在，或具一定亲水性。从化学性质言，三甲氧基硅烷部分活泼，可与诸多物质发生反应，如与含羟基之物，能起缩合反应，成稳定之硅氧键，借此可用于材料表面改性等，在化工领域用途颇广，于材料性能优化有大益也。
Technical Specifications & Labeling
3 -（甲氧基聚氧乙烯）三甲氧基硅烷者，其工艺规程与标识（产品参数）至为关键。此品制备，需依精准之法。原料配比务必合度，反应温度、时长皆当谨控。如原料混合时，次序不可乱，搅拌速率亦有定数。
标识方面，产品参数应详明。其外观、性状须确述，含量多寡、杂质限量等亦应清晰标注。如此，方能使使用者辨明其质，于工业生产、科研应用等皆可凭此为据，不致有误，确保该产品之应用精准无误，合乎所需之标准。
标识方面，产品参数应详明。其外观、性状须确述，含量多寡、杂质限量等亦应清晰标注。如此，方能使使用者辨明其质，于工业生产、科研应用等皆可凭此为据，不致有误，确保该产品之应用精准无误，合乎所需之标准。
Preparation Method
The raw materials and production process of this 3 - (methoxy polyoxyethylene) trimethoxysilane are crucial. Take methoxy polyethylene glycol and chlorosilane as raw materials, and mix the two in a specific ratio. In the reactor, the temperature is moderately controlled, and an appropriate amount of catalyst is added. This is the condition for the reaction. The reaction is gradual, and the raw materials are blended at the beginning, and chemical changes gradually occur. During this period, the reaction process is constantly monitored, and the temperature and stirring rate are adjusted in a timely manner. After the reaction is completed, impurities are removed by purification to obtain a pure product. A quality control mechanism is also set up in the follow-up. From the selection of raw materials to the production process, strict control is set up to ensure that the quality of the products is excellent and meets the expected standards.
Chemical Reactions & Modifications
The chemical reaction and modification of 3 - (methoxy polyoxyethylene) trimethoxysilane is very important. In many experiments, it can be seen that it encounters different media and reacts differently. When exposed to water, the methoxy group is easily hydrolyzed to form a silanol group, which is the state at the beginning of the reaction. Further, the siloxides are condensed with each other to form silica bonds, forming a complex structure. In this way, it can be modified. By adjusting the reaction conditions, such as temperature and the proportion of reactants, the products can have different characteristics. When the temperature increases, the reaction rate is accelerated, but the product structure may vary. After this chemical change and modification, the product has a wide range of applications in the field of materials, which can improve the hydrophilicity and stability of materials and lay the foundation for many research and applications.
Synonyms & Product Names
3- (methoxy polyoxyethylene) trimethoxysilane This product is known as many other names in the field of chemical industry. It is also known as methoxy polyethylene glycol trimethoxysilane, and it is also known as polyethylene glycol monomethyl ether trimethoxysilane. All other names refer to the same chemical product.
Its trade name is also called in the market, or "silicone-PEG methoxyltrimethoxysilane" and the like, in recognition of its characteristics and uses. In industrial production and scientific research experiments, although different names are different, they actually refer to the same thing. Chemists and producers, according to this name, demonstrate their characteristics and use it to create various products, such as material modification and surface treatment, to play their role and contribute to the progress of the chemical industry.
Its trade name is also called in the market, or "silicone-PEG methoxyltrimethoxysilane" and the like, in recognition of its characteristics and uses. In industrial production and scientific research experiments, although different names are different, they actually refer to the same thing. Chemists and producers, according to this name, demonstrate their characteristics and use it to create various products, such as material modification and surface treatment, to play their role and contribute to the progress of the chemical industry.
Safety & Operational Standards
3- (methoxy polyoxyethylene) trimethoxysilane safety and operating specifications
3- (methoxy polyoxyethylene) trimethoxysilane, is a special chemical, when used, safety and operating standards are of paramount importance.
The first word is safe. Although this substance is not an extremely dangerous product, it needs to be treated with caution. It is irritating. If it comes into contact with the skin inadvertently, rinse it with plenty of water immediately. If you feel unwell, be sure to seek medical attention. If it enters the eyes, you need to rinse it quickly with flowing water or normal saline, and then rush to the medical office. In terms of storage, it should be placed in a cool and ventilated warehouse, away from fire and heat sources, to prevent accidents. And should be stored separately from oxidants, acids, etc., do not mix storage, so as not to cause chemical reactions.
As for the operation specifications, the operator must be specially trained and strictly abide by the operation procedures. When operating, you should wear appropriate protective equipment, such as protective gloves, safety glasses, etc., to protect your own safety. Operate in a well-ventilated environment to prevent vapor accumulation. After use, the container should not be discarded at will, and it should be properly disposed of in accordance with relevant regulations to avoid pollution to the environment.
In addition, during transportation, it is also necessary to ensure that the container does not leak, collapse, fall, or damage. During transportation, it should be transported separately from contraindications. During transportation, it should be protected from sun exposure, rain, and high temperature. Only by strictly adhering to these safety and operating standards can we ensure the safe and efficient use of 3- (methoxy polyoxyethylene) trimethoxysilane.
3- (methoxy polyoxyethylene) trimethoxysilane, is a special chemical, when used, safety and operating standards are of paramount importance.
The first word is safe. Although this substance is not an extremely dangerous product, it needs to be treated with caution. It is irritating. If it comes into contact with the skin inadvertently, rinse it with plenty of water immediately. If you feel unwell, be sure to seek medical attention. If it enters the eyes, you need to rinse it quickly with flowing water or normal saline, and then rush to the medical office. In terms of storage, it should be placed in a cool and ventilated warehouse, away from fire and heat sources, to prevent accidents. And should be stored separately from oxidants, acids, etc., do not mix storage, so as not to cause chemical reactions.
As for the operation specifications, the operator must be specially trained and strictly abide by the operation procedures. When operating, you should wear appropriate protective equipment, such as protective gloves, safety glasses, etc., to protect your own safety. Operate in a well-ventilated environment to prevent vapor accumulation. After use, the container should not be discarded at will, and it should be properly disposed of in accordance with relevant regulations to avoid pollution to the environment.
In addition, during transportation, it is also necessary to ensure that the container does not leak, collapse, fall, or damage. During transportation, it should be transported separately from contraindications. During transportation, it should be protected from sun exposure, rain, and high temperature. Only by strictly adhering to these safety and operating standards can we ensure the safe and efficient use of 3- (methoxy polyoxyethylene) trimethoxysilane.
Application Area
3- (methoxy polyoxyethylene) trimethoxysilane, this chemical has a wide range of uses. In the field of material modification, it can be added to polymer materials, hydrolyzed and condensed by methoxysilane, forming covalent bonds with polymers, strengthening the mechanical properties of materials, such as improving the toughness and strength of plastics, making plastic products more durable. In the field of coatings, it can enhance the adhesion between coatings and substrates, making coatings firmly adhere, resist external erosion, and prolong service life. In the field of biomedicine, with the good biocompatibility of polyoxyethylene chains, it can modify the surface of biological materials, reduce immune reactions, and help the research and development of biosensors and drug carriers. It can be seen that 3- (methoxy polyoxyethylene) trimethoxysilane has important value in many application fields and has broad prospects.
Research & Development
The research and development of this 3- (methoxy polyoxyethylene) trimethoxysilane is quite important. This agent has unique properties and can be developed in various fields.
Looking at its structure, methoxy polyoxyethylene is connected to trimethoxysilane, resulting in its special interface activity and reactivity. In the field of materials, it can be used as a coupling agent to strengthen the combination between different materials and increase the properties of materials.
In the coating industry, it can improve the adhesion and weather resistance of coatings. During the research, the optimal conditions of use are continuously explored to optimize the synthesis method, hoping to improve the yield and quality. Looking forward to the future, this agent will be able to shine in a wider area due to the depth of research and development, and promote the progress of related industries.
Looking at its structure, methoxy polyoxyethylene is connected to trimethoxysilane, resulting in its special interface activity and reactivity. In the field of materials, it can be used as a coupling agent to strengthen the combination between different materials and increase the properties of materials.
In the coating industry, it can improve the adhesion and weather resistance of coatings. During the research, the optimal conditions of use are continuously explored to optimize the synthesis method, hoping to improve the yield and quality. Looking forward to the future, this agent will be able to shine in a wider area due to the depth of research and development, and promote the progress of related industries.
Toxicity Research
Toxicity of 3 - (methoxy polyoxyethylene) trimethoxysilane. It is an organosilicon compound, which is widely used in industry and scientific research. Toxicity research is indispensable.
First look at its chemical structure, methoxy polyoxyethylene chain is connected to trimethoxysilane group. Experiments show that at a specific concentration, it has a slight impact on the cell activity of the tested organisms. However, the concentration gradually increases, and the cell survival rate decreases.
Then explore its metabolic pathway into the organism, or through hydrolysis and other reactions, release silicon and oxygen-containing fragments. Some fragments may accumulate in the organism, causing potential harm.
In summary, although 3- (methoxy polyoxyethylene) trimethoxysilane has practical value, its toxicity research needs to be in-depth to ensure safe use and avoid harm to the environment and organisms.
First look at its chemical structure, methoxy polyoxyethylene chain is connected to trimethoxysilane group. Experiments show that at a specific concentration, it has a slight impact on the cell activity of the tested organisms. However, the concentration gradually increases, and the cell survival rate decreases.
Then explore its metabolic pathway into the organism, or through hydrolysis and other reactions, release silicon and oxygen-containing fragments. Some fragments may accumulate in the organism, causing potential harm.
In summary, although 3- (methoxy polyoxyethylene) trimethoxysilane has practical value, its toxicity research needs to be in-depth to ensure safe use and avoid harm to the environment and organisms.
Future Prospects
I think 3- (methoxy polyoxyethylene) trimethoxysilane has extraordinary potential. The future development is expected to shine in the field of material modification. Its unique structure may open up a new path for the research and development of new composite materials. In the field of biomedicine, there may also be opportunities for breakthroughs. With its excellent performance, it can assist in the optimization of drug delivery systems. And in terms of electronic materials, it may improve the stability and functionality of materials. These are all unfulfilled expectations. With time and careful study, it will be able to stimulate its potential and achieve a grand event, bringing innovation to various fields.
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What are the main application fields of 3- (methoxy polyoxyethylene) trimethoxysilane
3 - (methoxy polyethylene glycol ethyl ether) trimethoxysilane, this product is widely used and has its unique properties in many fields.
In the field of building materials, it can be a hydrophobic agent. Masonry, concrete and other materials, after treatment, can significantly improve waterproof performance. The cover can form a tight hydrophobic layer on the surface of the material due to its molecular structure. Raindrops fall on it, just like water droplets on a lotus leaf, rolling down without seepage, which greatly enhances the ability of building materials to resist water erosion and prolongs their service life.
In the paint industry, it is an excellent additive. Added to the paint, the adhesion between the paint and the substrate can be improved. This is because the substance can chemically react with the groups on the surface of the substrate and is closely connected to prevent the paint from peeling and falling off. At the same time, it can also improve the weather resistance of the paint, so that it can maintain the stability of color and performance for a long time in the environment of sun, rain, cold and summer.
In the field of adhesives, it also has its uses. It can enhance the bonding strength of the adhesive, especially for some difficult-to-stick materials, such as polyolefins, adding an appropriate amount of 3- (methoxy polyethylene glycol ethyl ether) trimethoxysilane can effectively improve the bonding effect. Its principle is to cross-link with the surface of the adhesive and the adhesive itself to form a stable network structure, thereby greatly improving the firmness of the bond.
In electronic materials, it can be used as a surface treatment agent. After the surface of electronic components is treated, its electrical insulation performance can be improved, and the moisture-proof and corrosion-proof capabilities of the components can be enhanced, ensuring the stable and reliable operation of electronic equipment, which is of great help to the development of the electronics industry.
In the field of building materials, it can be a hydrophobic agent. Masonry, concrete and other materials, after treatment, can significantly improve waterproof performance. The cover can form a tight hydrophobic layer on the surface of the material due to its molecular structure. Raindrops fall on it, just like water droplets on a lotus leaf, rolling down without seepage, which greatly enhances the ability of building materials to resist water erosion and prolongs their service life.
In the paint industry, it is an excellent additive. Added to the paint, the adhesion between the paint and the substrate can be improved. This is because the substance can chemically react with the groups on the surface of the substrate and is closely connected to prevent the paint from peeling and falling off. At the same time, it can also improve the weather resistance of the paint, so that it can maintain the stability of color and performance for a long time in the environment of sun, rain, cold and summer.
In the field of adhesives, it also has its uses. It can enhance the bonding strength of the adhesive, especially for some difficult-to-stick materials, such as polyolefins, adding an appropriate amount of 3- (methoxy polyethylene glycol ethyl ether) trimethoxysilane can effectively improve the bonding effect. Its principle is to cross-link with the surface of the adhesive and the adhesive itself to form a stable network structure, thereby greatly improving the firmness of the bond.
In electronic materials, it can be used as a surface treatment agent. After the surface of electronic components is treated, its electrical insulation performance can be improved, and the moisture-proof and corrosion-proof capabilities of the components can be enhanced, ensuring the stable and reliable operation of electronic equipment, which is of great help to the development of the electronics industry.
What are the physical and chemical properties of 3- (methoxy polyoxyethylene) trimethoxysilane?
3 - (methoxy polyethylene glycol ethyl ether) trimethoxysilane, its physical and chemical properties are very important. The appearance of this substance is often a colorless and transparent liquid, and under normal conditions, it has a certain fluidity.
In terms of its solubility, it can be soluble with many organic solvents, such as ethanol and acetone. This property makes it easy to mix with other ingredients in many chemical processes to play its unique role.
The boiling point is about a specific temperature range, and this temperature characteristic is related to its behavior during operations such as heating or distillation. The value of its boiling point determines the temperature at which the substance will change from liquid to gas, which is crucial for the temperature control of the process.
The melting point also has a corresponding value, indicating the temperature required for its transformation from solid to liquid. Knowing the melting point helps to make appropriate arrangements according to the ambient temperature when storing and handling the substance to ensure that its physical state meets the actual needs.
As for the density, it is a fixed value that reflects the mass of the substance in a unit volume. This parameter is of great significance in situations involving accurate measurement and proportions, and can help to accurately prepare various chemical formulations.
In addition, the chemical stability of the substance is also a key property. In the general chemical environment, its chemical structure is relatively stable, and it is not prone to unprovoked chemical reactions. However, under certain conditions, in the case of strong acids, bases, or specific catalysts, functional groups such as methoxy groups may participate in chemical reactions, exhibit corresponding chemical activities, and then achieve specific chemical transformations or functional modifications.
In terms of its solubility, it can be soluble with many organic solvents, such as ethanol and acetone. This property makes it easy to mix with other ingredients in many chemical processes to play its unique role.
The boiling point is about a specific temperature range, and this temperature characteristic is related to its behavior during operations such as heating or distillation. The value of its boiling point determines the temperature at which the substance will change from liquid to gas, which is crucial for the temperature control of the process.
The melting point also has a corresponding value, indicating the temperature required for its transformation from solid to liquid. Knowing the melting point helps to make appropriate arrangements according to the ambient temperature when storing and handling the substance to ensure that its physical state meets the actual needs.
As for the density, it is a fixed value that reflects the mass of the substance in a unit volume. This parameter is of great significance in situations involving accurate measurement and proportions, and can help to accurately prepare various chemical formulations.
In addition, the chemical stability of the substance is also a key property. In the general chemical environment, its chemical structure is relatively stable, and it is not prone to unprovoked chemical reactions. However, under certain conditions, in the case of strong acids, bases, or specific catalysts, functional groups such as methoxy groups may participate in chemical reactions, exhibit corresponding chemical activities, and then achieve specific chemical transformations or functional modifications.
What are the precautions for 3- (methoxy polyoxyethylene) trimethoxysilane during storage and transportation?
When storing and transporting tris (acetoxytriacetoxypropanol) sodium triacetoxyborohydride, it is necessary to pay attention to many key matters.
When storing, first, it should be placed in a cool and dry place. This medicine is prone to decomposition and deterioration in case of moisture. If it is stored in a humid place, moisture erosion may damage its chemical structure and properties, thereby reducing the efficacy of the medicine. Second, it should be kept away from fire and heat sources. Because of its certain chemical activity, it may be dangerous to burn or even explode when heated or exposed to open flames, endangering the safety of the storage environment. Third, it needs to be stored separately and cannot be mixed with oxidants, acids and other substances. Due to the special chemical properties of the substance, contact with other chemicals, or cause violent chemical reactions, resulting in danger.
During transportation, the first thing to ensure is that the packaging is complete. If the packaging is damaged, drugs or leaks, it will not only pollute the environment, but also react due to contact with external substances, causing safety accidents. Furthermore, the means of transportation must be clean and dry to avoid other impurities mixed in and affect the quality of the drug. At the same time, the transport personnel should be familiar with its chemical properties and emergency treatment methods. If there is an unexpected situation on the way, they can respond quickly and correctly to minimize losses and hazards. In short, all aspects of storage and transportation of this drug must be cautious to ensure its quality and safety.
When storing, first, it should be placed in a cool and dry place. This medicine is prone to decomposition and deterioration in case of moisture. If it is stored in a humid place, moisture erosion may damage its chemical structure and properties, thereby reducing the efficacy of the medicine. Second, it should be kept away from fire and heat sources. Because of its certain chemical activity, it may be dangerous to burn or even explode when heated or exposed to open flames, endangering the safety of the storage environment. Third, it needs to be stored separately and cannot be mixed with oxidants, acids and other substances. Due to the special chemical properties of the substance, contact with other chemicals, or cause violent chemical reactions, resulting in danger.
During transportation, the first thing to ensure is that the packaging is complete. If the packaging is damaged, drugs or leaks, it will not only pollute the environment, but also react due to contact with external substances, causing safety accidents. Furthermore, the means of transportation must be clean and dry to avoid other impurities mixed in and affect the quality of the drug. At the same time, the transport personnel should be familiar with its chemical properties and emergency treatment methods. If there is an unexpected situation on the way, they can respond quickly and correctly to minimize losses and hazards. In short, all aspects of storage and transportation of this drug must be cautious to ensure its quality and safety.
What are the synthesis methods of 3- (methoxy polyoxyethylene) trimethoxysilane?
To prepare tri- (acetoxyacetoxy) triacetoxypropanol, the method is as follows:
First, start with glycerol, first with acetic anhydride in the presence of an appropriate amount of catalyst such as sulfuric acid or p-toluenesulfonic acid, at a suitable temperature, such as 60-80 ° C. The hydroxyl group of glycerol is acylated with acetic anhydride to obtain triacetoxypropanol. Then, triacetoxypropanol reacts with chloroacetyl chloride at a low temperature, about 0-10 ° C, in the presence of acid binding agents such as pyridine, and the hydroxyl group of triacetoxypropanol reacts with chloroacetyl chloride to generate tri- (chloroacetoxy) triacetoxypropanol. Finally, an aqueous solution of a base such as sodium hydroxide or potassium carbonate is reacted with tris- (chloroacetoxy) triacetoxy propanol under mild conditions, such as room temperature, and chloroacetoxy is hydrolyzed to acetoxy. The target product is tris- (acetoxy acetoxy) triacetoxy propanol.
Second, propenyl alcohol is used as the starting material. Propenyl alcohol is first esterified with acetic acid under the catalysis of concentrated sulfuric acid under the condition of heating and reflux at about 110-130 ° C. Then peroxide such as peracetic acid is used as the oxidizing agent, and in a suitable solvent such as dichloromethane, at low temperature, about 0-20 ° C., the propylene acetate is epoxidized to obtain propylene oxide. Acrylic oxide acetate and acetic anhydride in the presence of a catalyst, such as boron trifluoride ethyl ether complex, react at 50-70 ℃, epoxy ring-opening and acetylation to obtain tri- (acetoxy acetoxy) triacetoxy propanol.
Third, propionaldehyde is used as raw material. Propionaldehyde is first catalyzed to hydrogenate, in the presence of a catalyst such as Rainey Nickel, in a hydrogen atmosphere, at a suitable temperature such as 50-80 ℃, to obtain 1-propanol. 1-Propanol is oxidized, and propionic acid can be obtained by using a mixture of potassium dichromate and sulfuric acid as an oxidizing agent. Propionic acid reacts with acetic anhydride, and under the action of the catalyst, produces propionic anhydride 1-Propanol and propionic anhydride are acylated to obtain tripropoxypropanol. Then chloroacetic acid and tripropoxypropanol are substituted under alkali catalysis to generate tri- (chloroacetoxy) tripropoxypropanol. Finally, after hydrolysis step and alkali treatment, the chloroacetoxy group is converted into acetoxy group to obtain tri- (acetoxy acetoxy) triacetoxy propanol.
First, start with glycerol, first with acetic anhydride in the presence of an appropriate amount of catalyst such as sulfuric acid or p-toluenesulfonic acid, at a suitable temperature, such as 60-80 ° C. The hydroxyl group of glycerol is acylated with acetic anhydride to obtain triacetoxypropanol. Then, triacetoxypropanol reacts with chloroacetyl chloride at a low temperature, about 0-10 ° C, in the presence of acid binding agents such as pyridine, and the hydroxyl group of triacetoxypropanol reacts with chloroacetyl chloride to generate tri- (chloroacetoxy) triacetoxypropanol. Finally, an aqueous solution of a base such as sodium hydroxide or potassium carbonate is reacted with tris- (chloroacetoxy) triacetoxy propanol under mild conditions, such as room temperature, and chloroacetoxy is hydrolyzed to acetoxy. The target product is tris- (acetoxy acetoxy) triacetoxy propanol.
Second, propenyl alcohol is used as the starting material. Propenyl alcohol is first esterified with acetic acid under the catalysis of concentrated sulfuric acid under the condition of heating and reflux at about 110-130 ° C. Then peroxide such as peracetic acid is used as the oxidizing agent, and in a suitable solvent such as dichloromethane, at low temperature, about 0-20 ° C., the propylene acetate is epoxidized to obtain propylene oxide. Acrylic oxide acetate and acetic anhydride in the presence of a catalyst, such as boron trifluoride ethyl ether complex, react at 50-70 ℃, epoxy ring-opening and acetylation to obtain tri- (acetoxy acetoxy) triacetoxy propanol.
Third, propionaldehyde is used as raw material. Propionaldehyde is first catalyzed to hydrogenate, in the presence of a catalyst such as Rainey Nickel, in a hydrogen atmosphere, at a suitable temperature such as 50-80 ℃, to obtain 1-propanol. 1-Propanol is oxidized, and propionic acid can be obtained by using a mixture of potassium dichromate and sulfuric acid as an oxidizing agent. Propionic acid reacts with acetic anhydride, and under the action of the catalyst, produces propionic anhydride 1-Propanol and propionic anhydride are acylated to obtain tripropoxypropanol. Then chloroacetic acid and tripropoxypropanol are substituted under alkali catalysis to generate tri- (chloroacetoxy) tripropoxypropanol. Finally, after hydrolysis step and alkali treatment, the chloroacetoxy group is converted into acetoxy group to obtain tri- (acetoxy acetoxy) triacetoxy propanol.
How is 3- (methoxy polyoxyethylene) trimethoxysilane compatible with other compounds?
(How is tris- (methoxyacetyl) trimethoxysilane compatible with other compounds?)
The miscibility of tris- (methoxyacetyl) trimethoxysilane in various compounds is quite critical, and it is related to the success or failure of many applications.
This silane has unique properties. In its molecular structure, methoxy acetyl groups and trimethoxysilane groups are combined with each other, resulting in its miscibility and its specificity.
If it encounters a polar compound, its methoxy acetyl group has a certain polarity, so it can show a certain affinity to some polar substances. For example, with polar compounds containing hydroxyl and carboxyl groups, weak interactions such as hydrogen bonds can be used to have moderate miscibility. However, if the polarity is too strong, far beyond its own matching range, it will be difficult to dissolve smoothly, or cause stratification and precipitation.
As for non-polar compounds, the non-polar characteristics of trimethoxysilane groups make them better miscible with non-polar compounds, such as alkanes. The dispersion force between the two molecules can help them miscible with each other to obtain a uniform system.
Encounters ionic compounds again, because of their overall non-ionic properties, they are often poorly miscible with ionic compounds. Strong electrostatic interaction between ions is difficult to match with weak interaction between silane molecules, and more consistent with each other and difficult to dissolve.
Overall, tris- (methoxyacetyl) trimethoxysilane is miscible with other substances, depending on the polarity and structure of other substances. It must be carefully considered in order to achieve the expected miscibility effect. It is used for material synthesis, surface modification, and other things to achieve good results.
The miscibility of tris- (methoxyacetyl) trimethoxysilane in various compounds is quite critical, and it is related to the success or failure of many applications.
This silane has unique properties. In its molecular structure, methoxy acetyl groups and trimethoxysilane groups are combined with each other, resulting in its miscibility and its specificity.
If it encounters a polar compound, its methoxy acetyl group has a certain polarity, so it can show a certain affinity to some polar substances. For example, with polar compounds containing hydroxyl and carboxyl groups, weak interactions such as hydrogen bonds can be used to have moderate miscibility. However, if the polarity is too strong, far beyond its own matching range, it will be difficult to dissolve smoothly, or cause stratification and precipitation.
As for non-polar compounds, the non-polar characteristics of trimethoxysilane groups make them better miscible with non-polar compounds, such as alkanes. The dispersion force between the two molecules can help them miscible with each other to obtain a uniform system.
Encounters ionic compounds again, because of their overall non-ionic properties, they are often poorly miscible with ionic compounds. Strong electrostatic interaction between ions is difficult to match with weak interaction between silane molecules, and more consistent with each other and difficult to dissolve.
Overall, tris- (methoxyacetyl) trimethoxysilane is miscible with other substances, depending on the polarity and structure of other substances. It must be carefully considered in order to achieve the expected miscibility effect. It is used for material synthesis, surface modification, and other things to achieve good results.
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