含砜基聚酰亚胺薄膜的制备与性能研究  

Preparation and Properties of Polyimide Films Containing Sulfone Groups

作　　者：郑文洁 何青峰 姚邦 张海龙 谭忠阳 ZHENG Wen-jie;HE Qing-feng;YAO Bang;ZHANG Hai-long;TAN Zhong-yang(Shenyang Ligong University,Shenyang Liaoning 110159,China;Zhongtai Group Co.,Ltd.,Shenyang Liaoning 110004,China;Shenyang Youyan Mineral Chemical Co.,Ltd.,Shenyang Liaoning 110027,China)

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159 [2]中钛装备制造有限公司,辽宁沈阳110004 [3]沈阳有研矿物化工有限公司,辽宁沈阳110027

出　　处：《当代化工》2023年第3期514-517,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金(项目编号:No.52203063);2021年辽宁省教育厅基本科研项目(项目编号:LJKZ0253、LJKZ0249);沈阳市科技计划项目(项目编号:No.21-108-9-38);沈阳理工大学博士启动项目(项目编号:1010147000917、1010147000918)。

摘　　要：利用含砜基二胺单体(3,3-DDS)和含砜基或六氟异丙基的二酐单体(DSDA或6FDA),调整6FDA和DSDA的摩尔比,经过均聚或共聚反应成功制备一系列聚酰亚胺(PI)薄膜。红外光谱中1 782 cm^(-1)、1 717 cm^(-1)和1 362 cm^(-1)处对应PI分子链中亚胺环的特征吸收峰的出现,证明了PI的成功合成;XRD测试结果证明合成的PI薄膜具有非晶无定形结构;DMA测试结果表明透明PI的玻璃化转变温度(Tg)在209.1~269.7℃范围内,与6FDA和DSDA的摩尔比例密切相关;光学透过率和阻隔率以及色差分析测试表明,合成的透明PI薄膜具有良好的透光率以及一定的紫外线和红外线的阻隔率。A series of polyimide(PI)films were successfully prepared using the sulfone-containing diamine monomer(3,3-DDS)and the sulfone-containing or hexafluoroisopropyl dianhydride monomer(DSDA or 6FDA)by adjusting the molar ratio of 6FDA and DSDA through homopolymerization or copolymerization reaction.The appearance of characteristic absorption peaks at 1782 cm^(-1),1717 cm^(-1) and 1362 cm^(-1) in the infrared spectrum corresponding to the imine ring in the polyimide molecular chain proved the successful synthesis of PI;XRD results proved that the synthesized PI films had non-crystalline amorphous structure;DMA results showed that the glass transition temperature(Tg)of transparent PI was in the range of 209.1~269.7℃,which was closely related to the molar ratio of 6FDA and DSDA;The optical transmittance and blocking rate and color difference analysis tests showed that,the synthesized transparent PI film had good light transmittance and certain ultraviolet and infrared blocking rate.

关 键 词：聚酰亚胺 砜基基团 热亚胺化 性能表征 

分 类 号：TQ050.425[化学工程]