Nonisothermal Kinetics of Free-Radical Polymerization of 2,2-Dinitropropyl Methacrylate

被引：0

作者：

黄咏峰 ^{[1
]}

张公正 ^{[1
]}

徐琴 ^{[1
]}

机构：

[1] School of Chemical Engineering and Environment,Beijing Institute of Technology

来源：

Journal of Beijing Institute of Technology | 2010年 / 19卷 / 04期

基金：

美国国家科学基金会;

关键词：

2,2-dinitropropyl methacrylate; DSC; free-radical polymerization; kinetics;

D O I：

10.15918/j.jbit1004-0579.2010.04.008

中图分类号：

O643.1 [化学动力学];

学科分类号：

070304 ; 081704 ;

摘要：

The 2,2-dinitropropyl methacrylate(DNPMA) was synthesized by esterification of α-methacrylic acid with 2,2-dinitropropanol.The free-radical bulk polymerization of DNPMA in the presence of 2,2-azobisisobutyronitrile(AIBN) was investigated by differential scanning calorimetry(DSC) in the nonisothermal mode.Kissinger,Ozawa and Barrett methods were applied to determine the activation energy(Ea) and the reaction order of the free-radical polymerization.The results showed that the temperature of exothermic polymerization peaks increased with increasing heating rate.With increasing the molar ratio of monomer/initiator and the heating rate,the reaction order of nonisothermal polymerization was approximately equal to 1.The average Ea value from Kissinger and Ozawa methods(77.74±1.07 kJ/mol) was smaller than the value from the Barrett method(Ea=102.36 kJ/mol).

引用

页码：466 / 470

页数：5

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