| 茂金属催化剂合成苯乙烯与乙烯嵌段共聚物及表征 |
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| 引用本文： | 王正辉,刘汝锋.茂金属催化剂合成苯乙烯与乙烯嵌段共聚物及表征[J].高分子材料科学与工程,2001,17(1):159-161. |
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| 作者姓名： | 王正辉 刘汝锋 |
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| 作者单位： | 广州师范学院化学系 |
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| 摘 要： | 由茂基三苄氧基苯CpTi(OBz)3]和甲基铝氧烷（ＭＡＯ）组成的催化体系对苯乙烯与乙烯通过先预聚合乙烯和先预聚合苯乙烯进行嵌段共聚合，研究了第一单体的预聚合时间对总催化效率的影响，通过萃取分离可得到嵌段共聚物ＰＥ－b-sPS和sPS-b-poly(S-co-E)。嵌段共聚物的微观结构、热行为及结晶行为用^13C NMR`DSC及ＷＡＸＤ进行了表征。
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| 关 键 词： | 茂钛催化剂 嵌段共聚物 表征 合成 苯乙烯 乙烯 |
| 文章编号： | 1000-7555(2001)01-0159-03 |
SYNTHESIS OF BLOCK COPOLYMERS PE-b-sPS AND sPS-b-Poly(S-co-E) WITH TITANOCENE CATALYST AND THEIR CHARACTERIZATION |
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| WANG Zheng-hui,LIU Rui-feng.SYNTHESIS OF BLOCK COPOLYMERS PE-b-sPS AND sPS-b-Poly(S-co-E) WITH TITANOCENE CATALYST AND THEIR CHARACTERIZATION[J].Polymer Materials Science & Engineering,2001,17(1):159-161. |
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| Authors: | WANG Zheng-hui LIU Rui-feng |
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| Abstract: | Two ways of block copolymerization of styrene and ethene were performed with CpTi(OBz) 3/MAO catalyst system in toluene. The block copolymers PE b sPS and sPS b Poly(S co E) were first obtained by extraction fractionation from the block copolymerization products. The micro structures, thermal behavior and crystalline behavior of these block copolymers were characterized by means of 13 C NMR, DSC, WAXD. |
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| Keywords: | titanocene catalyst block copolymer characterizati |
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