Novel benzoxazine monomer containing diacetylene linkage: An approach to benzoxazine thermosets with low polymerization temperature without added initiators or catalysts

被引：83

作者：

Chernykh, Andrey ^{[1
]}

Agag, Tarek ^{[1
]}

Ishida, Hatsuo ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA

来源：

POLYMER | 2009年 / 50卷 / 14期

关键词：

Polybenzoxazine; Diacetylene; Oxidative coupling; SOLID-STATE POLYMERIZATION; RING-OPENING POLYMERIZATION; IN-SITU PHOTOPOLYMERIZATION; THERMAL CHARACTERIZATION; PHENOLIC RESINS; POLYBENZOXAZINE; MALEIMIDE; KINETICS; BLENDS; MATRIX;

D O I：

10.1016/j.polymer.2009.04.061

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel benzoxazine monomer containing diacetylene linkage has been synthesized by applying an oxidative coupling approach. The structure is confirmed by H-1 and C-13 nuclear magnetic resonance (NMR) spectroscopy, and Fourier transform infrared (FTIR) spectroscopy. Differential scanning calorimetry (DSC) is used to study crosslinking behavior of synthesized material. The benzoxazine monomer exhibits unexpectedly low exothermic peak with the onset around 140 degrees C, which is significantly lower than conventional benzoxazines or benzoxazines containing additional crosslinking sites. Benzoxazine polymerization at this low temperature is also confirmed by FTIR. The initial model studies are made in order to understand this phenomenon and preliminary explanation is given. High thermal stability of the crosslinked thermoset was confirmed by thermogravimetric analysis (TGA). (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：3153 / 3157

页数：5

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