EFFECT OF TEMPERATURE ON COPOLYMERIZATION PARAMETERS OF HYDROXYETHYL ACRYLATE AND METHYL METHACRYLATE

被引：0

作者：

李欣欣

印啸敏

吴平平

韩哲文

朱清仁

机构：

[1] China

[2] Department of Polymers

[3] East China University of Science and Technology

[4] Hefei 230026

[5] Shanghai 200237

[6] Structure Research Laboratory

[7] University of Science and Technology of China

来源：

Chinese Journal of Polymer Science | 1998年 / 01期

关键词：

Reactivity ratio; 2-Hydroxyethyl acrylate; Methyl methacrylate; Copolymerization; Copolymer composition;

D O I：

暂无

中图分类号：

TQ316.3 [聚合反应过程];

学科分类号：

0805 ; 080502 ;

摘要：

The copolymerization of 2-hydroxyethyl acrylate （HEA, M;） and methylmethacrylate （MMA, M;） in cyclohexanone was studied. The multiple experiments ofsolution copolymerization with low conversion were carried out at two sensitive compositionfeed points at 60, 80, 100, 120 and 140℃, respectively. The composition of the copolymerswas analyzed by;H-NMR. The reactivity ratios which were estimated by the Error-in-Variable Method （EVM） of Mayo-Lewis equation were found to be r;= 0.328, r;= 1.781for 60℃; 0.375, 1.709 for 80℃; 0.406, 1.654 for 100℃; 0.439, 1.540 for 120℃ and 0.455,1.400 for 140℃, and the 95% joint confidence intervals of the reactivity ratios were alsodetermined. According to r;and r;, Arrhenius relations and the activity energy differencebetween the homo- and cross-propagation were calculated.

引用

页码：25 / 31

页数：7

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