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一种具有低分子量分布的丙烯腈共聚物纺丝液的制备方法
Authors
张若愚
杨建行
+5 more
欧阳琴
渠丽景
王艳菲
莫高明
陈友汜
Publication date
3 April 2013
Publisher
Abstract
本发明公开了一种具有低分子量分布的丙烯腈共聚物纺丝液的制备方法。本发明通过在丙烯腈单体与共聚单体的溶液聚合过程中,采用连续或间歇降温的方式来调节共聚物的重均分子量和数均分子量,从而使共聚物的分子量分布指数降低。与其它方法相比,该方法简单易行,工艺可操作性较强,利用该方法制得的丙烯腈共聚物的分子量分布指数可控制在2.3~2.8之间,这种丙烯腈共聚物溶液经过脱除残余单体和气泡后可用作高性能聚丙烯腈基碳纤维的纺丝液
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Last time updated on 22/01/2018