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    • 9. 发明专利
    • Polyethylvinyl ether derivative, production method thereof and method for controlling lcst type phase separation
    • 聚乙烯吡啶衍生物及其生产方法及其控制LCST型相分离方法
    • JP2009203396A
    • 2009-09-10
    • JP2008049125
    • 2008-02-29
    • Chisso CorpOsaka Univチッソ株式会社国立大学法人大阪大学
    • AOSHIMA SADATOKANEOKA SHOKYOKUSENO KENICHI
    • C08F116/12C08F8/44
    • PROBLEM TO BE SOLVED: To provide a stimuli-responsive polymer which dissolves in an organic solvent at a low temperature to form a transparent solution and undergoes phase separation when the temperature rises, and a method for producing the stimuli-responsive polymer. SOLUTION: The stimuli-responsive polymer is a polyethylvinyl ether derivative wherein an 1-alkylimidazolium group or a 4-alkylpyridinium group is bound to position 2 of an ethyl group in the polyethylvinyl ether and, in particular, is the polyethylvinyl ether derivative having a ratio of weight average molecular weight to number average molecular weight of ≤1.25. The method for producing the polyethylvinyl ether comprises living cationic polymerization of a 2-halogenoethylvinyl ether. The polyethylvinyl ether derivative is used in a method for controlling LCST type phase separation. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供在低温下溶解在有机溶剂中以形成透明溶液并在温度升高时进行相分离的刺激响应性聚合物,以及用于生产刺激响应性聚合物的方法。 解决方案:刺激响应性聚合物是聚乙基乙烯基醚衍生物,其中1-烷基咪唑鎓基或4-烷基吡啶基与聚乙基乙烯基醚中乙基的位置2结合,特别是聚乙基乙烯基醚衍生物 重均分子量与数均分子量的比值≤1.25。 聚乙烯基乙烯基醚的制造方法包括2-卤代乙基乙烯基醚的活性阳离子聚合。 聚乙烯基醚衍生物用于控制LCST型相分离的方法中。 版权所有(C)2009,JPO&INPIT