1、聚乙酸乙烯酯_百度百科
是乙酸乙烯酯（醋酸乙烯酯）的聚合物，化学式为 (C4H6O2)n，无色黏稠液或淡黄色透明玻璃状颗粒，溶于苯、丙酮和三氯甲烷等溶剂。 2017年10月27日，世界卫生组织国际癌症研究机构公布的致癌物清单初步整理参考，聚乙酸乙烯酯在3类致癌物清单中。
2、Synthesis of Poly(Vinyl Alcohol) and/or Poly(Vinyl Acetate) Particles
This work shows that, using the suspension polymerization technique, it is possible to obtain spherical particles with a core-shell structure of PVA/PVAc with regular morphology, instead of particles with irregular shapes and sizes, as usually found in many commercial embolization products.
3、Investigating the potential of degradable poly (vinyl acetate
Poly (vinyl acetate) is a well-known polymer synthesized through the free radical polymerization of vinyl acetate (VAc) monomer. However, enhancing the degradability of this polymer is best achieved by copolymerizing cyclic ketene acetal (CKA) with VAc.
4、Synthesis and mechanical behavior of poly (vinyl alcohol) / poly (vinyl
In this work, the effect of an organic solvent (tert-butanol) during the polymerization of vinyl acetate (VAc) on the structural and elastic properties of poly (vinyl alcohol)/poly (vinyl acetate) microspheres fabricated by the suspension polymerization method was investigated.
聚醋酸乙烯酯
妮秦集团是一家专业研发和制造用于 SMC/BMC、拉挤成型、粘合剂、口香糖基础材料的聚醋酸乙烯酯 PVAC 固体树脂... 妮秦集团生产的聚醋酸乙烯酯PVAC树脂广泛应用于玻璃钢SMC/BMC模压工艺的低收缩剂，环保胶水等领域，以及食品级酵母糖胶基。
Polyvinyl Alcohol Factory,Vinyl Acetate Monomer
Elephchem is a Chinese manufacturer of polyvinyl alcohol, VAE emulsion, PVA fiber, polyvinyl acetate emulsion, etc., with a professional R&D team and free consultation.
Free volume fraction and nanoholes shapes in polyvinyl
Positron annihilation lifetime and specific volume measurements were carried out in polyvinyl acetate, with the aim to evaluate the free volume fraction in a range of temperatures above the glass transition.
Synthesis of Poly(Vinyl Alcohol) and/or Poly(Vinyl Acetate) Particles
This work shows that, using the suspension polymerization technique, it is possible to obtain spherical particles with a core-shell structure of PVA/PVAc with regular morphology, instead of...
PVAC （固体）, 聚醋酸乙烯酯（固体），粘结剂，光亮剂
聚乙酸乙烯酯Polyvinyl acetate 分子式 (C4H6O2)n分子结构式 简称PVAC。 此产品是一种橡胶合成树脂，属于聚乙烯之类一族，通用分子式- [RCOOCHCH2]-，具有热塑性。
聚醋酸乙烯酯
聚醋酸乙烯酯（Polyvinyl acetate，也称作聚乙酸乙烯酯，简称PVA、PVAc）是一种有弹性的合成聚合物。 聚醋酸乙烯酯是通过醋酸乙烯酯（VAM）的聚合而制备的。
In modern polymer materials science, spherical polyvinyl acetate (SVAL) has emerged as a shining star due to its unique physical and chemical properties. As an important thermoplastic elastomer, SVAL not only performs exceptionally well in industrial applications but also holds a significant position in the biomedical field. This article delves into various aspects of spherical polyvinyl acetate, from its basic characteristics and preparation methods to its application fields, comprehensively showcasing the remarkable charm of this polymer material.
I. Basic Characteristics of SVAL
Spherical polyvinyl acetate is a polymer material synthesized from vinyl acetate monomers. Its molecular structure contains numerous flexible chain segments, endowing SVAL with excellent flexibility and reversibility. This unique structure allows SVAL to undergo deformation under external forces while rapidly recovering to its original state once the force is removed, enabling stress-responsive behavior.
Additionally, SVAL exhibits outstanding temperature resistance. Under high temperatures, it maintains robust mechanical properties and chemical stability; at low temperatures, it retains softness and processability. This adaptability makes SVAL highly suitable for diverse industrial applications.
II. Preparation Methods for SVAL
Various methods exist for synthesizing spherical polyvinyl acetate, with solution polymerization and emulsion polymerization being the most common.
Solution polymerization involves dissolving vinyl acetate monomers in a solvent, followed by initiation of the polymerization reaction using a catalyst. While simple to operate, this method yields lower productivity and produces polymers with a broad molecular weight distribution.
Emulsion polymerization, on the other hand, disperses vinyl acetate emulsions stabilized by surfactants in an aqueous phase for polymerization. This approach improves productivity and molecular weight uniformity but requires specialized equipment and complex operational procedures.
Other methods, such as suspension polymerization and condensation polymerization, are also employed in practice. Each method has its advantages and disadvantages, and the optimal choice depends on specific application requirements and production needs.
III. Applications of SVAL
Owing to its distinctive properties, spherical polyvinyl acetate finds widespread use across multiple fields. In industry, SVAL is primarily applied in rubber products, coatings, adhesives, and sealing materials. These applications leverage SVAL’s elasticity, wear resistance, mechanical strength, and heat resistance.
In the biomedical domain, SVAL demonstrates immense potential. Its biocompatibility and biodegradability make it ideal for drug delivery systems, tissue engineering scaffolds, and artificial skin development. These innovations offer safer and more effective treatment options for patients while driving advancements in medical technology.
As a material with vast application prospects, spherical polyvinyl acetate is poised to play an increasingly critical role in future developments. With continuous technological progress, we have every reason to believe that SVAL will unveil its unique value and potential in more domains. Let us eagerly anticipate the future advancements of this polymer material, where it will undoubtedly contribute greater momentum to human society’s progress.
