Synthesis of high performance polybenzoxazine networks from bio-based furfurylamine: Furan vs benzene ring
Synthesis of high performance polybenzoxazine networks from bio-based furfurylamine: Furan vs benzene ring
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从生物基糠胺合成高性能聚苯并恶嗪网络：呋喃与苯环
DOI：
10.1016/j.polymer.2017.06.075
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发表时间：
2017-07-28
期刊：
影响因子：
4.6
通讯作者：
Zhu, Jin
中科院分区：
文献类型：
--
作者：
Shen, Xiaobin;Dai, Jinyue;Zhu, Jin
以生物基呋喃甲胺为原料，合成了一种高性能的聚苯并恶嗪。作为比较，它的石油基类似物也由4，4-二氨基二苯甲烷(DDM)制备。前驱体的化学结构经核磁共振波谱(H-1-核磁共振和C-13-核磁共振)和傅里叶变换红外光谱(FT-IR)确证。在用差示扫描量热法(DSC)和傅立叶变换红外光谱仪(FT-IR)详细研究了固化反应后，用动态力学分析(DMA)和热重分析(TGA)研究了固化树脂的热性能和力学性能。结果表明，以呋喃胺为基的聚苯并恶嗪(BZ-F)具有较高的玻璃化转变温度(270℃)和较好的热稳定性，与DDM衍生的聚苯并恶嗪(BZ-DDM)相比，这可能是由于BZ-F体系中较强的氢键作用和呋喃环上280℃以上的后固化反应所致。本文重点研究了氢键对聚苯并恶嗪性能的影响，为设计和合成高性能的聚苯并恶嗪提供了指导。(C)2017爱思唯尔有限公司。保留所有权利。
A high performance polybenzoxazine derived from bio-based furfurylamine was synthesized in an efficient and straightforward way. For comparison, its petroleum-based analogue was also prepared from 4, 4-diaminodiphenylmethane (DDM). The chemical structures of the precursors were confirmed by Nuclear Magnetic Resonance Spectroscopy (H-1-NMR and C-13-NMR) and Fourier Transform Infrared Spectroscopy (FT-IR). After the curing reaction was investigated by Differential Scanning Calorimetry (DSC) and FT-IR in detail, the thermal and mechanical properties of the cured resins were studied by Dynamic Mechanical Analysis (DMA) and Thermogravimetric Analysis (TGA). Results demonstrated that the polybenzoxazine based on furfurylamine (BZ-F) possessed higher glass transition temperature (270 degrees C) and better thermal stability associated with higher charring ability when compared with the one (BZ-DDM) derived from DDM, which might be attributed to the stronger hydrogen bonding interaction in the BZ-F system and the post-curing reaction on furan ring above 280 degrees C. In this paper, the hydrogen bonding effect on the properties of polybenzoxazine has been especially studied, which might give us a guidance to design and synthesize the polybenzoxazine with high performance. (C) 2017 Elsevier Ltd. All rights reserved.