1、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。 乙酸乙烯酯为无色液体，具有甜的醚味，微溶于水，可溶于醇、丙酮、苯、氯仿。
2、乙烯
乙烯-醋酸乙烯共聚物（EVA）是由乙烯和醋酸乙烯按照不同的比例共聚而得，EVA这个英文缩写中的E就代表乙烯成分，VA代表醋酸乙烯成分，其性能与醋酸乙烯（VA）的含量密切相关，根据VA含量的不同可以分为三类：VA含量在5%-40%称EVA塑料，主要用于聚乙烯改性、制造电线电缆、薄膜极其他成型制品和混合料等；VA含量在40%-90%称为EVA橡胶，主要用于橡胶、电缆和汽车工业部件；VA含量高于90%称为聚醋酸乙烯乳液，主要用于粘合剂、涂料等。 乙烯-醋酸乙烯共聚物具有良好的耐冲击和耐应力开裂、柔软性、高弹性、抗穿刺以及化学稳定性、电性能较好、生物相容性好，同时密度低，且与填料、阻燃剂有较好的相容性。
3、Polymers and copolymers from fatty acid
Fatty acid vinyl esters (FAVE) were synthesized via a transition-metal catalyzed transvinylation reaction between vinyl acetate (VAc) and oleic or linoleic acid.
4、Free
Vinyl monomers from soybean, sunflower, linseed, and olive oils were copolymerized with styrene (St), methyl methacrylate (MMA), and vinyl acetate (VAc) to determine the reactivity of biobased monomers in radical copolymerization, as well as their feasibility in emulsion processes for the synthesis of biobased latexes.
5、Polymerization of vinyl acetate in fatty acids and
Polymerization of vinyl acetate (VAc) in various fatty acids (carbon numbers 4–18) was carried out. Chain transfer constants to the acids were determined to be 20–35×10 −4, from which the constant to a methylene group was obtained to be 0.73×10 −4.
Vinyl acetate_化工百科
中文名:醋酸乙烯酯,英文名:Vinyl acetate,CAS:108-05-4,化学式:C4H6O2,分子量:86.09,密度:0.934 g/mL at 25 °C (lit.),熔点:-93 °C (lit.),沸点:72-73 °C (lit.),闪点:20°F,水溶性:23 g/L (20 ºC),蒸汽压:88 mm Hg ( 20 °C),折射率:n20/D 1.395 (lit.),MSDS.
Polymerization of vinyl acetate in fatty acids and properties of poly
Abstract Polymerization of vinyl acetate (VAc) in various fatty acids (carbon numbers 4–18) was carried out.
Polymerization of Vinyl Acetate and Other Vinyl Esters
Chapter POLYMERIZATION OF VINYL ACETATE AND OTHER VINYL ESTERS 1. Introduction . A. Physical Properties of Vinyl Acetate B. Monomer Purification Vinyl Acetate Purification with Aqueous Alkali Extraction 1-2. Vinyl Acetate Purification with Aldehyde Reagents. . C. Initiation, Inhibition, and Retardation of Polymerization . D.
ethylene
Products with a vinyl acetate content of less than 40% are EVA resin; products with a vinyl acetate content of 40% to 70% are very flexible and possess elastic characteristics, primarily used as rubber elastomers and for polyvinyl chloride (PVC) modification. EVA resin within this content range is sometimes referred to as EVA rubber. Products with a vinyl acetate content in the range of 70% to 95%
乙烯基乙酸_化工百科
乙烯基乙酸 - 简介 乙烯基乙酸（vinyl acetate）是一种无色液体，具有辛辣气味。 以下是乙烯基乙酸的性质，用途，制法和安全信息的介绍： 性质： 1. 乙烯基乙酸具有较高的蒸汽压和挥发性。 2. 它可溶于水和有机溶剂，如醇和醚类。 3. 在高温下会分解 ...
Fatty acid vinyl acetate, as a crucial chemical raw material, plays an indispensable role in modern industry. This article provides an in-depth exploration of the properties, production methods, and applications of fatty acid vinyl acetate, aiming to offer readers a comprehensive and thorough understanding.
1. Basic Properties of Fatty Acid Vinyl Acetate
1.1 Chemical Structure and Nomenclature
Fatty acid vinyl acetate is an ester compound, with its molecular structure composed of fatty acid and vinyl acetate moieties. The naming of this compound typically follows the pattern of "acid + base + ester," such as stearic acid vinyl acetate. This naming convention not only clearly reflects the composition of the compound but also aids in understanding its chemical properties and uses.
1.2 Physical Properties
Fatty acid vinyl acetate exhibits excellent solubility and stability, soluble in various solvents such as alcohols and ketones. It also demonstrates good thermal stability, maintaining chemical integrity at elevated temperatures. Additionally, it has a low melting point and boiling point, enhancing its practicality in industrial applications.
2. Production Methods of Fatty Acid Vinyl Acetate
2.1 Traditional Synthesis Methods
Conventional methods for producing fatty acid vinyl acetate rely primarily on esterification reactions. Fatty acids are reacted with vinyl acetate under catalytic conditions to form the desired product. Although straightforward, this approach suffers from low yields, numerous byproducts, and significant environmental pollution.
2.2 Green Synthesis Methods
With growing environmental awareness, green synthesis methods have gained traction. For instance, bioenzyme-catalyzed esterification allows reactions to proceed at lower temperatures and pressures, reducing energy consumption and pollution. Additionally, the use of ionic liquids as catalysts enables environmentally friendly esterification processes.
3. Applications of Fatty Acid Vinyl Acetate
3.1 Coatings Industry
Fatty acid vinyl acetate is widely used in the coatings industry. It enhances gloss and adhesion, improving the aesthetic appeal and durability of coatings. Furthermore, it boosts weather resistance and corrosion resistance, prolonging the lifespan of coated products.
3.2 Textile Industry
In textiles, fatty acid vinyl acetate functions as a softener and lubricant, improving fabric softness, shine, and handfeel. It is also employed in crease-resistant finishing to enhance wrinkle resistance.
3.3 Plastics and Rubber Industry
Fatty acid vinyl acetate plays a critical role in plastics and rubber manufacturing. As a plasticizer, it increases flexibility and elasticity. Additionally, it acts as a lubricant to reduce mechanical wear and extend equipment longevity.
fatty acid vinyl acetate is a vital chemical raw material with broad and impactful applications in industrial production. Through deeper understanding of its properties, innovative advancements in production methods, and expanded applications, it is poised to play an even greater role in future development, contributing significantly to human progress.
