高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (7): 1433.

• 研究论文 • 上一篇    下一篇

一步法合成高T_g可溶含偶氮三嗪发色团的新型侧链含氟聚酰亚胺

潘晓霞, 隋郁, 徐宏杰, 印杰, 刘燕刚, 高剑, 朱子康, 黄德音, 王宗光   

  1. 上海交通大学化学化工学院高分子材料研究所, 上海 200240
  • 收稿日期:2001-01-18 出版日期:2002-07-24 发布日期:2002-07-24
  • 通讯作者: 印杰(1964年出生),男,博士,教授,主要从事功能高分子研究工作.
  • 基金资助:

    上海市科委新材料研究中心重点基金(批准号:97JC14014);“高等学校骨干教师资助计划”项目资助

One-step Synthesis of High Tg Organo-soluble Side-chain Fluorinated Polyimides Containing a Triazine-azo Chromophore

PAN Xiao-Xia, SUI Yu, XU Hong-Jie, YIN Jie, LIU Yan-Gang, GAO Jian, ZHU Zi-Kang, HUANG De-Yin, WANG Zong-Guang   

  1. Research Institute of Polymer Materials, School of Chemistry and Chemical Technology, Shanghai Jiaotong University, Shanghai 20024
  • Received:2001-01-18 Online:2002-07-24 Published:2002-07-24

PDF (PC)

被引次数

21

摘要： 采用一步法合成了一系列侧链含偶氮三嗪发色团的新型含氟聚酰亚胺FPI(x),并研究其溶解性能、热性能以及光学性能.该系列聚酰亚胺具有优良的溶解性能,不仅溶于NMP,DMAc,DMF,DMSO等强极性非质子性溶剂,而且还溶于THF和乙二醇单甲醚等低沸点溶剂.FPI(x)系列共聚聚酰亚胺具有较高的玻璃化转变温度(Tg,在544～562K之间),且与主链中染料发色团的含量无关.所有聚酰亚胺都表现出优良的高温稳定性,其5%热失重温度(T5)比Tg高出100K以上,基本能满足电场极化对聚合物材料热稳定性的要求.另外,FPI(x)系列聚酰亚胺的紫外截止吸收波长小于500nm,即在大于500nm波长范围内基本透明.其面内折光指数nTE随着染料发色团含量的增加而逐渐增加.

关键词: 共聚聚酰亚胺, 三嗪类偶氮发色团, 含氟, 侧链

Abstract: Aseries of fluorinated copolyimides containing a triazine azo chromophore were prepared by a one step method. The copolyimides obtained were characterized by FTIRspectra, UV-Vis spectra, DSC, TGAand the prism coupling device. The copolyimides are soluble not only in aprotic organic solvents such as Nmethyl 2 pyrrolidone(NMP), N, Ndimethyl acetamide(DMAc), N, Ndimethyl formamide(DMF), dimethylsulfoxide(DMSO), but also in low boiling point solvents such as ethyleneglycol monomethyl ether and tetrahydrofuran(THF). They are almost completely transparent at wavelengths greater than 500nm. All copolyimides possess high glass transition temperatures(Tg, 544-562 K) and are almost independent of the chromophore loading level. The 5% weight loss temperatures( T5) of the copolyimides are more than 100 Khigher than the corresponding Tgs and this high thermal stability would ensure high temperature electric poling of the copolyimides. The in plane refractive index of a copolyimide is increased as the chromophore content is increased.

Key words: Copolyimide, Triazine azo chromophore, Fluorinated, Side chain

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