1、聚乙酸乙烯酯_百度百科
聚乙酸乙烯酯（Polyvinyl acetate，简称PVAc）的研究始于20世纪初。 1912年，德国化学家Fritz Klatte首次通过乙酸乙烯酯的聚合合成了该物质，并获得了相关专利。
2、Poly (vinyl Acetate)
Polyvinyl acetate (PVAc) is defined as the homopolymer of vinyl acetate, produced through free radical vinyl polymerization of the monomer vinyl acetate. It is a solid polymer that is insoluble in water and has various applications, characterized by its specific physical and chemical properties.
3、Polyvinyl Acetate
Stability: Stable in sunshine and under 125℃, darkens at 150℃, deforms at 225℃, release acetic acid and brown resinous insoluble matter. - Main Applications of PVAC Acetate. For more detailed informatioin about our PVAC, please downloud the datasheets or simply enquiry us.
Polyvinyl acetate solubility
In buffer solutions, polyvinyl acetate phthalate (200mg/L) is insoluble below pH 5 and becomes soluble at pH values above 5. Polyvinyl acetate pththalate shows a sharp solubility response with pH this occurs at pH 4.5-5.0, which is lower than for most other polymers used for enteric coatings.
Polyvinyl acetate (PVAc)
Polyvinyl acetate, a synthetic resin prepared by the polymerization of vinyl acetate. In its most important application, polyvinyl acetate serves as the film-forming ingredient in water-based (latex) paints; it is also used in adhesives. Learn more about polyvinyl acetate in this article.
聚醋酸乙烯酯_化工百科
中文名:聚醋酸乙烯酯,英文名:Poly (vinyl acetate),CAS:9003-20-7,化学式:C4H6O2,分子量:86.08924,密度:1.18 g/mL at 25 °C,熔点:60°C,沸点:70-150 °C,闪点:>100℃,蒸汽压:86.3mmHg at 25°C,折射率:n20/D 1.467,MSDS.
Jiangsu Yinyang Gumbase Materials Co.,Ltd
Yinyang Gumbase Materials Ltd is specialized in manufacturing Polyvinyl Acetate PVAC with Green Technology. The polyvinyl acetate PVAC is largely used in Gumbase, FRP, Adhesives, Medicals and Paitings.
Polyvinyl Acetate
It is soluble in low-molecular-weight alcohols, esters, and chlorinated hydrocarbons. PVAc is tasteless and odorless, with the exception of a faint odor. The ester groups of polyvinyl acetate are susceptible to base hydrolysis, converting PVAc to polyvinyl alcohol and acetic acid over time.
Solubility parameter of poly(vinyl acetate)
Solubility parameter of poly(vinyl acetate) Data extract from Landolt-Börnstein VIII/6D2: Polymers, Polymer Solutions, Physical Properties and their Relations I (Thermodynamic Properties: PVT-data and miscellaneous properties of polymer solutions)
Polyvinyl Acetate
Poly (vinyl acetate) is a thermoplastic polymer obtained by polymerisation of vinyl acetate using a suitable starter, without solvent or with water or 2-propanol.
Polyvinyl Acetate Insoluble Matter
In the world of chemistry, the properties and behaviors of substances are often closely related to their composition. Polyvinyl acetate (PVAc), as an important macromolecular material, has unique dissolving properties that have aroused wide concern among scientists. This article will explore the solubility of PVAc and how this characteristic affects its applications in various fields.
PVAc is a polymer formed by the polymerization of vinyl acetate monomers. It has good film-forming properties, flexibility, and transparency. the solubility of PVAc is a complex topic. Under normal temperature and pressure, PVAc is almost insoluble in water but can be dissolved in various organic solvents such as ethanol, ethyl ether, acetone, etc. This unique solubility makes PVAc widely used in areas such as coatings, adhesives, and film production.
The solubility of PVAc is closely related to its molecular structure. The PVAc molecular chain contains a large number of polar groups such as carboxyl groups and hydroxyl groups, which can form hydrogen bonds or dipole-dipole interactions with solvent molecules, thus making PVAc dissolve. Additionally, the flexible segments on the PVAc molecular chain also contribute to improving its solubility because flexible segments can move freely in the solvent, thereby promoting the interaction between solvent molecules and the polymer chain.
The solubility of PVAc is also affected by temperature. As the temperature increases, the molecular movement of PVAc intensifies, making the polar groups more likely to interact with solvent molecules, thus making PVAc easier to dissolve. PVAc usually needs to be dissolved at lower temperatures, which limits its application in industrial production.
The solubility of PVAc has significant implications for its processing and application. Firstly, the solubility of PVAc determines its processing performance in different solvents. For example, when preparing coatings, PVAc needs to be able to dissolve in a solvent to mix with other components and apply uniformly. In contrast, when preparing adhesives, PVAc requires dissolving in a solvent with strong bonding force to achieve good adhesion effect.
Secondly, the solubility of PVAc also has a crucial impact on product quality. During the production processes of coatings and adhesives, the solubility of PVAc is directly related to the uniformity and stability of products. If PVAc fails to dissolve well in the solvent, it may lead to problems such as layering and precipitation in coatings and adhesives, reducing product performance.
the solubility of PVAc is closely related to its application field. In some specific fields such as biomedical and environmental protection, special requirements are placed on the solubility of PVAc. For instance, in the biomedical field, PVAc used needs to have good biocompatibility and biodegradability; while in the environmental protection field, PVAc needs to be safely treated and recycled to avoid pollution to the environment.
the solubility of PVAc is an important part of its chemical properties, which has a significant impact on the application and development of PVAc. By thoroughly studying the solubility of PVAc and its influencing factors, we can better understand its performance characteristics, optimize its processing technology, and expand its application prospects in various fields. we should also focus on the environmental issues related to PVAc and strive to achieve sustainable development during its production and use process.
