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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and curing properties of a novel curing agent based on N-(4-hydroxyphenyl) maleimide and dicyclopentadiene moieties
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Synthesis and curing properties of a novel curing agent based on N-(4-hydroxyphenyl) maleimide and dicyclopentadiene moieties

机译：基于N-（4-羟苯基）马来酰亚胺和二环戊二烯部分的新型固化剂的合成与固化性能

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摘要

A new type of epoxy resin curing agent, containing pendant phenol functions, was synthesized by the free-radical copolymerization of N-(4-hydroxyphenyl) maleimide with dicyclopentadiene (DCPD) monomer in the presence of a radical initiator. The chemical structure was characterized with Fourier transform infrared spectroscopy and nuclear magnetic resonance. The molecular weight of the new curing agent was determined by gel permeation chromatography. The activity and activation energy of this new curing agent with o-cresol formaldehyde novolac epoxy (CNE) was investigated with a nonisothermal differential scanning calorimetry technique at different heating rates. The thermal properties of the cured polymers were evaluated with thermogravimetric analysis, and the results exhibit good thermal stability. In addition, this new curing agent with CNE showed low moisture absorption because of the hydrophobic nature of the DCPD structure.
机译：在自由基引发剂的存在下，通过N-（4-羟苯基）马来酰亚胺与二环戊二烯（DCPD）单体的自由基共聚反应，合成了一种新型的含酚侧链的环氧树脂固化剂。化学结构通过傅里叶变换红外光谱和核磁共振表征。通过凝胶渗透色谱法测定新固化剂的分子量。采用非等温差示扫描量热技术，研究了不同加热速率下邻苯甲酚甲醛酚醛清漆环氧树脂（CNE）与这种新型固化剂的活性和活化能。用热重分析法评价固化的聚合物的热性能，结果显示出良好的热稳定性。此外，这种具有CNE的新型固化剂由于DCPD结构的疏水性而显示出较低的吸湿性。

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