Fluorinated Colorless Polyimides with High Heat-resistance and Low Birefringence

作     者：Bing-Yu Zou Lu-Hao Qiu Huan-Yu Lei Jin-Ming Liu Wei-Feng Peng Hong-Qin Zhao Feng Bao Ming-Jun Huang Bing-Yu Zou;Lu-Hao Qiu;Huan-Yu Lei;Jin-Ming Liu;Wei-Feng Peng;Hong-Qin Zhao;Feng Bao;Ming-Jun Huang

作者机构：South China Advanced Institute for Soft Matter Science and TechnologySchool of Emergent Soft MatterSouth China University of TechnologyGuangzhou510640China Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and DevicesSouth China University of TechnologyGuangzhou510640China 

出 版 物：《高分子科学:英文版》 (Chinese Journal of Polymer Science)

年 卷 期：2023年第41卷第10期

页      面：1599-1608页

核心收录：

学科分类：07[理学] 08[工学] 070205[理学-凝聚态物理] 0804[工学-仪器科学与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Natural Science Foundation of Guangdong Province(No.2022A1515010125) the Key-Area Research and Development Program of Guangdong Province(No.2020B010182002) the Guangdong Basic and Applied Basic Research Foundation(No.2022A1515110543) the R&D Program of Guangzhou(No.2023A04J1577) the Major Program of National Natural Science Foundation of China(No.51890871) the Recruitment Program of Guangdong(No.2016ZT06C322) the 111 Project(No.B18023) Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application at Soochow University 

主　　题：Colorless polyimide Low birefringence Fluorinated Optical flm 

摘      要：The development of optical films with high transparency,high thermal resistance and low birefringence remains a challenge in the flexible display *** this work,we designed and synthesized a series of fluorinated colorless polyimides(CPIs)materials using 2,5-substituted m-phenylenediamine diamine monomers and 1,2,4,5-cyclohexanetetracarboxylic dianhydride(CHDA).We systematically studied the effects of fluorinated group substitutions on the thermal,mechanical,optical and dielectric properties of CPI *** introduction of alicyclic CHDA dianhydride affords high transparency and low yellowness,while the 2,5-substituted m-phenylenediamine diamines offer the CPIs with quite low birefringence as well as high glass transition temperatures.A particular CHDA/o3FBDA film with simple chemical structure stands out,exhibiting well-balanced overall properties.