共 1 条
[1]
Confidence intervals for copolymerization reactivity ratios determined by the Kelen-Tüd?s method[J] . Polymer Bulletin . 1980 (1)
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] Department of Polymers
[2] East China University of Science and Technology
[3] Shanghai
[4] China
[5] Structure Research Laboratory
[6] University of Science and Technology of China
[7] Hefei
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：
<正> The copolymerization of 2-hydroxyethyl acrylate （HEA, M1） and methylmethacrylate （MMA, M2） 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 1H-NMR. The reactivity ratios which were estimated by the Error-in-Variable Method （EVM） of Mayo-Lewis equation were found to be r1 = 0.328, r2 = 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 r1 and r2, Arrhenius relations and the activity energy differencebetween the homo- and cross-propagation were calculated.
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页码：25 / 31
页数：7
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