聚乙烯醋酸酯

聚乙烯醋酸酯用途

作胶姆糖基料，我国规定可用于乳化香精和胶姆糖，最大使用量为60g/kg。

用作聚乙烯醇、醋酸乙烯-氯乙烯共聚物、醋酸乙烯-乙烯共聚物的原料，也用于制备涂料、粘合剂等。

热塑性树脂,在酸或碱性溶剂中水解成聚乙烯醇，制备聚乙烯醇的主要原料。当分子中含有光敏化剂时对光敏感，在紫外光或电子束作用下发生分解反应，具有正性感光树脂特性。聚乙酸乙烯酯能溶于多种有机溶剂，能与多种带双键的单体共聚，从而引入各种官能团，具有不同性能。常作为黏合剂使用。

聚乙烯醋酸酯名称

[ CAS 号 ]:
9003-20-7

[ 中文名 ]:
白乳胶

[ 英文名 ]:
SEC-BUTYLACETATE

[英文别名 ]:

SEC-BUTYLACETATE
sec-Butyl ethanoate
Acetic acid 1-methylpropyl ester
butan-2-yl acetate
MFCD00084457
Acetic acid, sec-butyl ester
Acetic acid, 1-methylpropyl ester
EINECS 203-545-4
DL-sec-Butyl acetate
poly(1-acetoxyethylene)

聚乙烯醋酸酯物理化学性质

[ 密度 ]:
0.9±0.1 g/cm3

[ 沸点 ]:
112.6±8.0 °C at 760 mmHg

[ 熔点 ]:
60°C

[ 分子式 ]:
C₄H₆O₂

[ 分子量 ]:
116.158

[ 闪点 ]:
16.1±0.0 °C

[ 精确质量 ]:
116.083733

[ PSA ]:
26.30000

[ LogP ]:
1.59

[ 外观性状 ]:
pellets | Clear

[ 蒸汽压 ]:
21.6±0.2 mmHg at 25°C

[ 折射率 ]:
1.396

[ 储存条件 ]:
2-8°C

[ 水溶解性 ]:
ketones, ethers and aromatic hydrocarbons: soluble

聚乙烯醋酸酯安全信息

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xi

[ 风险声明 (欧洲) ]:
R45;R46

[ 安全声明 (欧洲) ]:
S24/25

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
3

[ RTECS号 ]:
AK0920000

聚乙烯醋酸酯制备

1.在醋酸的存在下，以过氧化苯甲酰为引发剂，醋酸乙烯进行本体聚合；或以聚乙烯醇为分散剂，在溶剂中于70～90℃下进行溶液聚合2～6h(聚合度控制在250~600为宜)，即得产品。

2.在醋酸的存在下，以过氧化苯甲酰为引发剂，由醋酸乙烯进行本体聚合；或以聚乙烯醇为分散剂，在一定温度下于溶剂中进行聚合制得。

聚乙烯醋酸酯文献

[Taste-masking possibilities in solid dosage forms].

Acta Pharm. Hung. 82(2) , 81-90, (2012)

Increasing number of new, innovative pharmaceutical products are in the generic market. One of the important dosage forms is the group of orally disintegrating products. The feature of these products ...

Real time and non-destructive analysis of tablet coating thickness using acoustic microscopy and infrared diffuse reflectance spectroscopy.

Int. J. Pharm. 438(1-2) , 33-44, (2012)

Tablet coating thicknesses were estimated using several techniques such as weight gain and scanning electron microscopy (SEM), in comparison with acoustic microscopy and diffuse reflectance spectrosco...

Poly(N-vinylpyrrolidone)-block-poly(vinyl acetate) as a drug delivery vehicle for hydrophobic drugs.

Biomacromolecules 13(12) , 4109-17, (2012)

Poly((N-vinylpyrrolidone)-block-poly(vinyl acetate)) (PVP-b-PVAc) block copolymers of varying molecular weight and hydrophobic block lengths were synthesized via controlled radical polymerization and ...

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