Thermal analysis and mechanical characterization of maleimide-functionalized benzoxazine/epoxy copolymers
Thermal analysis and mechanical characterization of maleimide-functionalized benzoxazine/epoxy copolymers
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DOI：
10.1002/app.22499
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发表时间：
2006-08-05
影响因子：
3
通讯作者：
Ohba, Sharon
中科院分区：
文献类型：
--
作者：
Ishida, Hatsuo;Ohba, Sharon
马来酰亚胺官能化的苯并恶嗪与环氧树脂共聚以改善韧性和加工性而不损害热性能。将马来酰亚胺官能团引入苯并恶嗪单体中产生高性能聚合物。所有三种可能的聚合反应，确认使用傅里叶变换红外（FT-IR）光谱。虽然马来酰亚胺官能化的苯并恶嗪的玻璃化转变温度T-g为252摄氏度，但当与环氧树脂共聚时，观察到T-g进一步增加25摄氏度。还测量了弯曲性能，并且共聚物表现出4.2-5.0 GPa的弯曲模量。(c)2006 Wiley Periodicals，Inc.
Maleimide-functionalized benzoxazine is copolymerized with epoxy to improve toughness and processibility without compromising the thermal properties. The incorporation of maleimide functionality into the benzoxazine monomer results in a high performance polymer. All three possible polymerization reactions are confirmed using Fourier transform infrared (FT-IR) spectroscopy. While maleimide-functionalized benzoxazine has a glass transition temperature, T-g, of 252 degrees C, a further 25 degrees C increase of T-g is observed when copolymerized with epoxy. The flexural properties are also measured, and the copolymers exhibit a flexural modulus of 4.2-5.0 GPa. (c) 2006 Wiley Periodicals, Inc.