Kinetics of Alcoholysis of Poly（Vinyl Acetate）Chinese Full Text
Zha Xi,Bao Yongzhong(State Key Laboratory of Chemical Engineering,Department of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310027,China)
Abstract: Alcoholysis of poly（vinyl acetate）（PVAc） is the main method of preparation of poly（vinyl alcohol）. The effects of alcoholysis temperature,molar ratio between NaOH and vinyl acetate unit（alkali molar ratio）,and concentration of water on alcoholysis kinetics of poly（vinyl acetate） were investigated.It was found that PVAc alcoholysis reaction rate was proportional to the concentration of PVAc at temperature of 30-45 ℃,alkali molar ratio of 10‰-25‰,water content of 0.25%-2.5%.The alcoholysis reactio... More
- Series：
(B) Chemistry/ Metallurgy/ Environment/ Mine Industry
- Subject：
Organic Chemical Industry
- Classification Code：
TQ325.9
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