TAP-BPDA超支化聚酰亚胺的制备及性能

材料导报

2019, Vol. 33

Issue (z1): 491-494

高分子与聚合物基复合材料

TAP-BPDA超支化聚酰亚胺的制备及性能

陈营, 周红梅, 陈德平, 慕东, 魏燕红, 叶远新

成都工业学院材料工程学院,成都 610031

Synthesis and Properties of TAP-BPDA Hyperbranched Polyimides

CHEN Ying, ZHOU Hongmei, CHEN Deping, MU Dong, WEI Yanhong, YE Yuanxin

School of Materials Engineering,Chengdu Technological University, Chengdu 610031

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摘要采用不同物质的量比的3,3′,4,4′-联苯四甲酸二酐(BPDA)和2,4,6-三氨基嘧啶(TAP)合成了一系列具有不同终端基团的超支化聚酰亚胺。然后采用红外光谱(FT-IR)、核磁共振(¹H-NMR)、凝胶渗透色谱(GPC)、热失重分析(TGA)、差示扫描量热仪(DSC)对合成的超支化聚酰亚胺进行了测试和表征。结果表明:酸酐终端的超支化聚酰亚胺的分子量和特性粘度高于氨基终端的超支化聚酰亚胺,并且,当TAP与BPDA的物质的量比为2∶3时,所得超支化聚酰亚胺具有最高的数均分子量和最高的特性粘度。氨基终端的超支化聚酰亚胺比酸酐终端的超支化聚酰亚胺具有更高的5%热失重温度和玻璃化转变温度。对聚酰亚胺的溶解性能进行测试,结果表明,所得到的三种超支化聚酰亚胺在N,N-二甲基甲酰胺(DMF)、二甲亚砜(DMSO)等非质子强极性溶剂中具有良好的溶解性能,并且酸酐终端超支化聚酰亚胺的溶解性优于氨基终端的超支化聚酰亚胺。

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关键词: 超支化聚酰亚胺合成分子量溶解性能热性能

Abstract: Aseries of hyperbranched polyimides with different terminated groups were prepared based on BPDA and 2,4,6-triaminopyrimidine (TAP) via a two-step polymerization. The obtained HBPIs’ structures and performance were characterized by Fourier transform infrared spectroscopy(FT-IR), gel permeation chromatography(GPC), thermal gravimetrie analysis(TGA), differential scanning calorimetry(DSC), and so on.The results show that the polyimides with the highest number average molecular weights (M_n) and inherent viscosities would be obtained when the molar ratio of TAP to BPDA was 2∶3. And the glass transition temperatures (T_g) and 5% weight loss temperatures of amine-terminated polyi-mides were higher than that of anhydride-terminated polyimides. All of the polyimides showed excellent solubility in strong polar solvents such as DMF and DMSO, and the solubility of anhydride-terminated polyimides were higher than that of amine-terminated polyimides

Key words: hyperbranched polyimides synthesis molecular weight solubility thermal property

出版日期: 2019-05-25 发布日期: 2019-07-05

ZTFLH:

O63

基金资助: 四川省科技计划项目(2019YJ0376)

作者简介: 陈营,1986年生,博士,成都工业学院讲师。2008年毕业于西北工业大学高分子材料与工程专业,获工学学士学位;2013年毕业于西北工业大学高分子化学与物理专业,获理学博士学位;2014—2016年在电子科技大学材料学专业开展博士后研究。在国内外期刊发表论文20余篇,其中SCI 收录6篇,一区文章2篇。主要从事高分子改性与加工方向的研究工作,主持一项四川省科技计划项目。chy043151@163.com

引用本文:

陈营, 周红梅, 陈德平, 慕东, 魏燕红, 叶远新. TAP-BPDA超支化聚酰亚胺的制备及性能[J]. 材料导报, 2019, 33(z1): 491-494.
CHEN Ying, ZHOU Hongmei, CHEN Deping, MU Dong, WEI Yanhong, YE Yuanxin. Synthesis and Properties of TAP-BPDA Hyperbranched Polyimides. Materials Reports, 2019, 33(z1): 491-494.

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http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2019/V33/Iz1/491

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