常压法系列窄分布聚苯乙烯样品的制备 |
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引用本文: | 余学海,徐军,万玉钢,王治流,程镕时,陈茂琪,张楚柏,张宗龙,廖仲生,周玉喜,沙凤英. 常压法系列窄分布聚苯乙烯样品的制备[J]. 石油化工, 1991, 0(11) |
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作者姓名: | 余学海 徐军 万玉钢 王治流 程镕时 陈茂琪 张楚柏 张宗龙 廖仲生 周玉喜 沙凤英 |
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作者单位: | 南京大学化学系,南京大学化学系,南京大学化学系,南京大学化学系,南京大学化学系,南京炮兵学院化学教研组,南京炮兵学院化学教研组,南京炮兵学院化学教研组,南京炮兵学院化学教研组,南京炮兵学院化学教研组,南京炮兵学院化学教研组 南京 210008,南京 210008,南京 210008,南京 210008,南京 210008,南京 211132,南京 211132,南京 211132,南京 211132,南京 211132,南京 211132 |
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摘 要: | 用阴离子聚合的方法,在常压和惰性气体保护的条件下,成功地制备了重均分子量从500到2×10~6一系列窄分布聚苯乙烯标准试样,取代了常用的高真空聚合方法。单体在含有少量四氢呋喃的苯中,以正丁基锂作为催化剂进行聚合。本文对优化的聚合条件和操作手续作了描述和讨论。
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Preparation under Atmospheric Pressure of Polystyrene Standard Sample Series with Narrow Molecular Weights Distribution |
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Abstract: | A series of narrow molecular weight distribution polystyrene standard samples with weight average molecular weights varying from 500 to 2×10~6 were prepared successfully by anionic polymerization under atmospheric pressure with the protection of inert gas instead of the conventional high vacuum process. The monomer was polymerized in benzene containing a small amount of tet(?)hydrofuran with n-butyl lithium as catalyst. The optimized polymerization conditions and procedures were described and discussed. |
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