1、乙烯
乙烯-醋酸乙烯共聚物（EVA）是由乙烯和乙酸乙烯（VA含量5%-40%）共聚而成的通用高分子聚合物，燃烧时无刺激性气味，其性能随VA含量变化而改变：VA含量越高，透明度、柔软度和坚韧度越高。 根据VA含量不同采用不同聚合工艺：VA含量低于30%采用高压本体聚合（塑料制品），高于30%采用乳液聚合（粘合剂），此外还有溶液聚合（PVC加工助剂）和悬浮聚合。 通过调节VA比例，EVA可满足薄膜、鞋材、热熔胶、电缆护套等多种应用需求，是一种兼具优异柔韧性和加工性能的高分子材料。 (C2H4)x. (C4H6O2)y.
2、Ethylene
Ethylene-vinyl acetate copolymer (CAS 24937-78-8) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.
3、A combination of DFT and kMC to study on the formation mechanism of
In this paper, the mechanism of ethyl acetate generation during ethylene vinyl acetate reaction on PdAu catalysts was systematically investigated using a combination of density functional theory (DFT) and kinetic Monte Carlo (kMC) simulations.
Solvent Effect in the Copolymerization of Ethylene and Vinyl Acetate
Abstract The copolymerization of ethylene vinyl acetate (VAc) at 4.0 MPa and 75 °C has been studied experimentally and computationally in four organic solvents, namely, methanol (MeOH), tert -butyl alcohol (TBA), methyl acetate (MA), and dimethyl carbonate (DMC), to reveal the effect of the solvents on copolymerization.
Ethylene Vinyl Acetate Copolymers
Ethylene Vinyl Acetate Copolymers - Handbook of Engineering and Specialty Thermoplastics - Wiley Online Library
ETHYLENE VINYL ACETATE
CAS号查询致力于为化学行业用户免费提供ETHYLENE VINYL ACETATE的CAS号、中文名称、英文名称相互转换服务,同时也包括ETHYLENE VINYL ACETATE的性质、化学式、分子结构、密度、熔点、沸点等信息。
Polymerization reaction between ethylene and vinyl acetate, resulting
The functionalization of the ethylene–vinyl acetate copolymer (EVA) was carried out in an internal mixer, using maleic anhydride (MA), dicumyl peroxide (DCP) and styrene monomer (St) as...
乙酸乙烯酯_百度百科
乙酸乙烯酯（Vinyl Acetate）又称醋酸乙烯酯、乙烯基乙酸酯、乙烯乙酸等，它是一种有机化合物，其分子式为C4H6O2，相对分子质量为86.09。
Simulation study on the co
Vinyl acetate-ethylene (VAE) copolymer (Xu et al., 2018, Naghash et al., 2006, Sisanth et al., 2017) is formed by the polymerization of vinyl acetate and ethylene monomers which is suitable for many applications.
What Is Ethylene Vinyl Acetate (EVA)? Characteristics And Applications
Ethylene-vinyl acetate (EVA) plastic consists of randomly distributed vinyl acetate chains interspersed with ethylene-ₓy chains. EVA results from copolymerization between ethylene and vinyl acetate, produced via block copolymerization or solution copolymerization.
In the realm of chemistry, there exist many captivating compounds, among which ethyl acetate and vinyl acetate shine as two brilliant stars. Not only are they important intermediates in organic synthesis, but they also serve as bridges connecting the natural world to artificial synthesis. This article delves into the properties, uses, and applications of these two compounds in chemical engineering, revealing their unique status and value in the scientific landscape.
I. Chemical Structure and Properties
Ethyl acetate, with the chemical formula C₂H₅O₂, is a colorless, transparent liquid with a distinct fruity aroma. Its molecular structure consists of one carbon atom, two hydrogen atoms, and one oxygen atom, connected by single bonds to form a symmetrical ring-like structure. This configuration makes ethyl acetate a liquid under normal conditions, though it exhibits high volatility and readily evaporates into gas.
Vinyl acetate, with the formula C₃H₄O₂, shares similarities with ethyl acetate. It is also a colorless, transparent liquid with a comparable scent. The key difference lies in the number of carbon atoms: vinyl acetate contains three, making its molecular structure more complex.
II. Chemical Properties
Both ethyl acetate and vinyl acetate belong to the family of ester compounds. They undergo hydrolysis in water, producing corresponding acids and alcohols. This property broadens their application prospects in organic synthesis. For instance, ethyl acetate serves as a raw material for synthesizing various organic acids in pharmaceuticals, while vinyl acetate is used in the production of polymers like polyvinyl chloride (PVC) in the plastics industry.
Beyond hydrolysis, these compounds exhibit unique chemical behaviors. Ethyl acetate tends to decompose via decarboxylation under light or heat, yielding acetaldehyde and carbon dioxide. Vinyl acetate, when exposed to acidic conditions, decomposes into acetic acid and ethylene. Additionally, both compounds participate in oxidative and addition reactions, showcasing remarkable chemical diversity.
III. Applications and Significance
Ethyl acetate and vinyl acetate hold immense importance in chemical production. They act as precursors for numerous organic chemicals, including acids, alcohols, ethers, and ketones. Their roles extend to solvents, plasticizers, and emulsifying agents in industries such as coatings, adhesives, and cosmetics. Due to their high volatility, they are also employed in fragrances and flavorings.
From an environmental perspective, these compounds play a critical role. Their volatility enables condensation-based recycling techniques, reducing ecological impact. As societal focus on sustainability grows, developing eco-friendly alternatives remains a key objective in chemical innovation.
IV. Future Prospects
Looking ahead, the research and application of ethyl acetate and vinyl acetate are poised to expand. Advances in technology and materials science suggest their potential in emerging fields like renewable energy, bioengineering, and pharmaceuticals. Concurrently, minimizing environmental footprints during production and usage will be vital to achieving green chemistry goals.
ethyl acetate and vinyl acetate are twin luminaries in the chemical world. Their distinctive structures and properties, coupled with vast practical applications, underscore their significance. As science progresses, these compounds are expected to contribute even greater value to humanity while advancing the frontiers of chemical science.
