METHOD FOR CONTROLLING POLYIMIDE BACKBONE STRUCTURE AND METHOD FOR PRODUCING POLYIMIDE
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP3431525A1
公开(公告)日:2019-01-23
A method for controlling a polyimide backbone structure, including: in preparation of a polyimide through reaction of a diamine component and (1S,2R,4S,5R)-cyclohexanetetracarboxylic dianhydride in an organic solvent containing an aprotic amide solvent and a lactone solvent, adjusting one or more of reaction conditions of a mass ratio of the aprotic amide solvent and the lactone solvent, a reaction temperature, a reaction time, and an amount of the aprotic amide solvent, so as to convert a cis-structure derived from the (1S,2R,4S,5R)-cyclohexanetetracarboxylic dianhydride in the formed polyimide to a trans-structure derived from (1R,2S,4S,5R)-cyclohexanetetracarboxylic dianhydride corresponding to the reaction conditions, thereby controlling a proportion of the trans-structure.
一种控制聚酰亚胺骨架结构的方法,包括通过二胺组分和(1S,2R,4S,5R)-环己烷四羧酸二酐在含有烷基酰胺溶剂和内酯溶剂的有机溶剂中反应制备聚酰亚胺,调整烷基酰胺溶剂和内酯溶剂的质量比、反应温度、反应时间和烷基酰胺溶剂的用量中的一个或多个反应条件,以便将(1S,2R,4S,5R)-环己烷四羧酸二酐衍生的顺式结构转化为聚酰亚胺、以及烷基酰胺溶剂的用量,以便将形成的聚酰亚胺中由(1S,2R,4S,5R)-环己烷四羧酸二酐衍生的顺式结构转化为与反应条件相应的由(1R,2S,4S,5R)-环己烷四羧酸二酐衍生的反式结构,从而控制反式结构的比例。