含氰基和芴Cardo环结构双马来酰亚胺的设计合成和性能

doi:10.11901/1005.3093.2018.327

材料研究学报

2018, Vol. 32

Issue (11): 820-826 DOI: 10.11901/1005.3093.2018.327

本期目录 | 过刊浏览

含氰基和芴Cardo环结构双马来酰亚胺的设计合成和性能

刘思扬¹, 陈平¹(

), 熊需海², 于祺²

1 大连理工大学化工学院精细化工国家重点实验室大连 116024
2 沈阳航空航天大学辽宁省先进聚合物基复合材料重点实验室沈阳 110136

Synthesis and Property of Bismaleimide Resins Containing Fluorene Cardo and Cyano Groups

Siyang LIU¹, Ping CHEN¹(

), Xuhai XIONG², Qi YU²

1 State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
2 Liaoning Key Laboratory of Advanced Polymer Matrix Composites, Shenyang Aerospace University, Shenyang 110136, China

引用本文:

刘思扬, 陈平, 熊需海, 于祺. 含氰基和芴Cardo环结构双马来酰亚胺的设计合成和性能[J]. 材料研究学报, 2018, 32(11): 820-826.
Siyang LIU, Ping CHEN, Xuhai XIONG, Qi YU. Synthesis and Property of Bismaleimide Resins Containing Fluorene Cardo and Cyano Groups[J]. Chinese Journal of Materials Research, 2018, 32(11): 820-826.

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摘要:

使用9,9′-双(4-羟基苯基)芴和2,6-二氯苯甲腈为原料,合成了含有氰基和芴基结构的n ≈1寡聚双马来酰亚胺(PFCBMI);使用红外光谱(FITR)和¹H NMR等手段表征和分析了中间体和目标产物的化学结构。使用差示扫描量热仪(DSC)和热重分析仪(TGA)研究了PFCBMI的固化反应和固化物的热稳定性,还研究了PFCBMI/BDM共聚树脂。动态DSC的结果表明：随着PFCBMI含量的提高其固化特征参数均逐渐增大;TGA的结果表明：随着PFCBMI含量的提高交联密度降低使PFCBMI/BDM树脂体系的热分解特征参数均有所降低;动态热机械分析(DMA)结果表明：PFCBMI/BDM树脂基复合材料的储能模量约为10 GPa,玻璃化转变温度高于470℃,具有优异的耐热性。

关键词 ：有机高分子材料, 芴Cardo结构, 氰基, 双马来酰亚胺, 固化反应, 耐热性

Abstract：

One novel oligomeric BMI monomer of n ≈1 containing fluorene cardo and cyano groups (PFCBMI) was synthesized with 9,9′-bis[4-(4-maleimidophenoxy)phenyl] fluorine and dichlorobenzonitrile as raw materials. The chemical structure as well as the curing behavior and the thermal stability of the BMIs were characterized by means of 1H NMR spectroscopy and Fourier transform infrared spectroscopy (FTIR) as well as dynamic differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). In addition, the copolymerizations of PFCBMI/BDM resins were investigated. Results show that the characteristic parameters of DSC curves for PFCBMI/BDM resin system increased with the increase of PFCBMI; The increase of PFCBMI leads to the decrease of the crosslink density and thus the decrease of the characteristic parameters for PFCBMI/BDM resins. Furthermore, the PFCBMI/BDM composites present excellent heat resistance with the storage modulus about 10 GPa and the glass transition temperature above 470°C.

Key words： organic polymer materials fluorene cardo group cyano group bismaleimide curing behavior heat resistance

收稿日期: 2018-05-16

ZTFLH:

TQ332.4

基金资助:国防基础研究重点项目(A35201XXXXX),国家自然科学基金(51303107,51703003),中央高校基本科研业务费(DUT18GF107),辽宁省自然科学基金(201602149)

作者简介:

作者简介刘思扬,男,1989年生,博士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2018.327 或 https://www.cjmr.org/CN/Y2018/V32/I11/820

图1 BDM的化学结构式

图2 含氰基和芴基双马来酰亚胺的合成路线

图3 PFCBMI的红外光谱

图4 PFCBMI的1H-NMR谱

表1 PFCBMI的溶解性能

图5 PFCBMI的DSC曲线

图6 PFCBMI固化物的TG曲线

图7 BDM与PFCBMI间可能反生的固化反应

图8 PFCBMI/BDM树脂体系的DSC曲线

表2 PFCBMI/BDM树脂体系的DSC曲线特征数据

图9 PFCBMI/BDM树脂体系的TGA和DTG曲线

表3 PFCBMI/BDM树脂体系的热分解特征参数

图10 PFCBMI/BDM树脂基复合材料的DMA谱

表4 PFCBMI/BDM树脂基复合材料的DMA特征数据

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