What are the common application fields of 4-vinylbenzenesulfonic acid homopolymers?
Sodium 4-ethylbenzyl sulfonate oligomer has a wide range of common application fields. In the field of daily chemical industry, it is often found in detergents. Because of its excellent surface activity, the cover can effectively reduce the surface tension of water, enhance the emulsification and dispersion ability of detergent to oil stains, and make the washing effect better. And this oligomer is mild in nature and has little irritation to the skin, so it is also used in personal care products such as shampoo and body wash, which can provide good cleaning and foaming properties.
In the field of textile printing and dyeing, sodium 4-ethylbenzyl sulfonate oligomer can be used as a leveling agent. When the fabric is dyed, it can evenly disperse the dye in the dye solution, avoid local accumulation of the dye, and then ensure uniform dyeing of the fabric, consistent color, and improve the quality of dyeing.
In the petroleum industry, it can be used as an oil displacement agent. When the reservoir is exploited, the oligomer can reduce the oil-water interfacial tension, improve the fluidity of crude oil, and make the crude oil easier to be displaced from the rock pores, thereby improving the oil recovery rate.
In the paper industry, this oligomer can be used as a papermaking aid. It can improve the surface properties of the paper, improve the water resistance and strength of the paper, and at the same time play a role in the pulp dispersion process, so that the fibers are evenly dispersed, resulting in better paper quality.
In addition, in some industrial production processes, 4-ethylbenzylsulfonate sodium oligomers can also act as dispersants, wetting agents, etc., to help the smooth progress of various production operations and optimize product performance. In short, it plays an important role in many fields and is of great significance for improving product quality and production efficiency.
What are the physical properties of 4-vinylbenzenesulfonic acid homopolymers?
The oligomer of 4-isopropylbenzene sulfonic acid is a class of organic compounds. Its physical properties are quite unique, with the following characteristics:
First, the solubility is different. In organic solvents, such as ethanol, acetone, etc., this oligomer exhibits a certain solubility. This characteristic comes from its molecular structure, which has both lipophilic isopropyl and benzene ring parts, so that there is a van der Waals force interaction between the molecule and the organic solvent, and then partially dissolves; however, the presence of sulfonic acid groups makes it hydrophilic, so the solubility in polar organic solvents is more significant. In water, because the sulfonic acid group can be ionized, the oligomer has a certain water solubility. However, the degree of oligomerization will also cause differences in its water solubility. Those with high oligomerization degree are water-soluble or slightly inferior.
Second, the melting point and boiling point are unique. The melting point and boiling point of the oligomer are subject to intermolecular forces. In addition to van der Waals force, hydrogen bonds can be formed between the sulfonic acid groups. This hydrogen bond force is strong, causing the molecules to bind each other tightly, so that the melting point and boiling point are relatively high. And with the increase of the degree of oligomerization, the molecular chain increases, the intermolecular force increases, and the melting point and boiling point also increase.
Third, the appearance properties are clear. Generally speaking, 4-isopropylbenzene sulfonic acid oligomers are mostly colorless to light yellow viscous liquids, or solid forms, which are related to the degree of oligomerization and purity. Those with high purity and low oligomerization may be brighter liquids; when the degree of oligomerization is high, they may be closer to solids, and the color may change due to the influence of impurities and the synthesis process.
Fourth, density has its own characteristics. Compared with water, its density may vary slightly due to molecular structure and degree of oligomerization, generally slightly higher than the density of water. Due to the relatively large mass of groups such as phenyl ring and isopropyl group in the molecule, the mass per unit volume increases.
Are the chemical properties of 4-vinylbenzenesulfonic acid homopolymers stable?
4-Ethylbenzyl chloroformate is a very important intermediate in organic synthesis. As for whether its chemical properties are stable, it should be considered from various factors.
Let's talk about the thermal stability first. When this compound is heated, due to the presence of ester groups and chlorine atoms in the molecule, at higher temperatures, the ester groups may undergo hydrolysis, alcoholysis and other reactions. The chlorine atom is located at the benzyl position, which is affected by the benzene ring. Its C-Cl bond activity is enhanced, and it is easy to break the bond at high temperature, resulting in decomposition and other reactions. It can be seen that its thermal stability is poor.
On chemical stability again, it is quite sensitive to acid-base environment. In an acidic environment, ester groups are easy to hydrolyze, and corresponding alcohols and acids are gradually formed; in an alkaline environment, the hydrolysis reaction rate is faster, and when the alkalinity is too strong, chlorine atoms will also participate in the reaction, or nucleophilic substitution occurs, causing molecular structure changes.
In terms of redox stability, if the compound encounters a strong oxidant, some groups in the molecule, such as benzyl moiety, may be oxidized; in case of strong reducing agents, the carbonyl moiety of the ester group may be reduced, so the tolerance to redox conditions is also limited.
In summary, the chemical properties of 4-ethylbenzyl chloroformate are not stable. When storing and using, it is necessary to avoid conditions such as high temperature, strong acid, strong base, strong oxidizing agent and strong reducing agent. Keep it properly and handle it carefully to prevent adverse reactions and ensure the stability of its chemical structure and properties.
What is the production process of 4-vinylbenzenesulfonic acid homopolymer?
The preparation process of 4-isopropylbenzene sulfonic acid oligomer is quite exquisite. The preparation of this substance requires many steps to achieve its formation.
At the beginning, isopropylbenzene is selected as the base material, which is the key to start. Place it in a specific reactor, and pre-fill the kettle with an appropriate amount of catalyst. This catalyst has an extraordinary effect, which can promote the speed of the reaction and make the reaction proceed in the expected direction. Commonly used catalysts are mostly sulfonic acids, which are very active and can initiate the reaction under mild temperature and pressure.
Then, slowly heat up to make the temperature in the kettle reach a suitable degree. Generally speaking, this temperature is usually controlled between one hundred and twenty to one hundred and fifty degrees Celsius. Temperature control is crucial. If it is too high, the reaction will be too fast, and the product will be heterogeneous; if it is too low, the reaction will be slow and time-consuming. At this temperature, isopropylbenzene interacts with the catalyst, and the sulfonic acid group on the benzene ring gradually combines with it to form the monomer of isopropylbenzene sulfonic acid.
However, to obtain an oligomer, further polymerization is required. At this time, a polymerization initiator is added, and in a specific temperature and pressure environment, the monomers are connected to each other, and the molecular chain gradually increases, and then an oligomer is formed. During polymerization, the pressure also needs to be stabilized and controlled, and it is always maintained within
After the reaction is completed, the product still contains impurities and needs to be purified. Extraction, distillation and other methods are commonly used to remove impurities to make the product pure to the required standard. After this series of processes, a pure 4-isopropylbenzene sulfonic acid oligomer can be obtained for various uses. It has extraordinary effects in the fields of chemical industry and materials.
What is the price range of 4-vinylbenzenesulfonic acid homopolymer in the market?
In today's market, the price of 4-ethylbenzenesulfonic acid oligomers varies depending on quality, quantity, source and market conditions. Its price is about tens to hundreds of yuan per kilogram.
If the quality is high and pure, it can be used for scientific research and special industry, and its price may be high, up to hundreds of yuan per kilogram. This is because of its difficulty, high technology and strict control are required, and the requirements for purity and impurities are strict, so the price is high.
If it is of ordinary quality, it can be used for regular life, and the price may be low, tens of yuan per kilogram. Such mass production is large, the quality requirements are wider, and the cost is reduced and the price is also reduced.
Also, the quantity also affects its price. If the purchase volume is large, the merchant may give a discount to promote the sale, and the unit price will drop; if the purchase volume is small, the unit price may be high.
The source is also the main reason. In this real estate, there is no long-distance transportation and customs fees, and the price may be low; if you enter the country, you will add transportation and customs fees, and the price may be high.
And the supply and demand of the market also cause the price to fluctuate. If demand exceeds supply, the price will rise; if supply exceeds demand, the price will decrease.
In order to know the exact price of 4-ethylbenzenesulfonic acid oligomer, when you consult the supplier in detail, the price will be agreed according to the required quality and quantity.
