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发明公开
CN1524888A 一种透明高抗冲苯乙烯－丁二烯共聚物及其制备方法 有权 转让

一种透明高抗冲苯乙烯－丁二烯共聚物及其制备方法
摘要：
本发明提供了一种透明高抗冲苯乙烯－丁二烯共聚物以及制备方法，聚合物的结构为：S－B－B/S－SB或S－B－SB－B/S；聚合物的平均分子量范围10万～15万，分子量分布1.25～1.45，S∶B为70∶30～80∶20；在阴离子聚合体系下，采用四步加料法制备该聚合物。该聚合物在机械外力作用下，不会有泛白起雾现象出现，同时具有良好的韧性，共聚物的雾度小于2.5％，透明性大于90％。
摘要（英）：

The invention provides a transparent high strike resistance phenylethene-butadiene copolymer and method for preparation, wherein the polymer structure is S-B-B/S-SB or S-B-SB-B/S, the average molecular weight of the polymer is 100 thousand - 150 thousand, the molecular weight distribution is 1.25-1.45, S:B = 70:30-80:20, The polymer is prepared by four step charging method in the anionic polymerization architecture. The polymer has good toughness, the mist degree of the copolymer is less than 2.5%, its transparency is greater than 90%.

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