| 自由基引发的高转化率甲基丙烯酸甲酯-苯乙烯共聚物的交叉分级 |
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| 引用本文： | 叶锦镛,骆德莘. 自由基引发的高转化率甲基丙烯酸甲酯-苯乙烯共聚物的交叉分级[J]. 高等学校化学学报, 1987, 8(2): 176 |
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| 作者姓名： | 叶锦镛 骆德莘 |
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| 作者单位： | 复旦大学材料科学研究所 |
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| 摘 要： | 用自由基引发的高转化率甲基丙烯酸甲酯-苯乙烯共聚物在25.0±0.1℃的丙酮-乙腈、一氯代正丁烷-环己烷中进行交叉分级,测定了所得到的35个级分的化学组成和分子量。从实验结果可知,Stockmayer理论对低转化率共聚物及高转化率的MS共聚物的化学组成分布的计算都适用,计算所得分布与交叉分级实验结果基本相符。
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| 收稿时间： | 1985-09-06 |
Cross Fractionation of Radical Initiated Methyl Methacrylate Styrene Copolymer with High Conversion |
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| Ye Jinyong,Luo Dexin. Cross Fractionation of Radical Initiated Methyl Methacrylate Styrene Copolymer with High Conversion[J]. Chemical Research In Chinese Universities, 1987, 8(2): 176 |
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| Authors: | Ye Jinyong Luo Dexin |
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| Affiliation: | The Institute of Material Science, Fudan University, Shanghai |
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| Abstract: | Methyl methacrylatc-styrene copolymers with high conversion initiated by the radical were cross-fractionated in two solvent-nonsolvent, acetone-acelonitrile and n-butyl chloridc-cyclohcxane, 35 fractions were obtained and their chemical compositions and molecular weights were determined. The results show that the application range of Stockmayer equation should include copolymer with high conversion, if a correction was made to offset the deviation due to the changs of reactivity ratios during the ccpolymerization, a chemical composition distribution curve which is basically in accord with the experimental datum was obtained. |
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