Synthesis and curing properties of a novel curing agent based on N-(4-hydroxyphenyl) maleimide and dicyclopentadiene moieties

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 trans...

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Bibliographic Details
Published in:Journal of applied polymer science 2011-04, Vol.120 (1), p.56-61
Main Authors: Liu, Jia, Zeng, Xiao-Liang, Zhang, Xu-Yong, Xia, Xin-Nian
Format: Article
Language:English
Subjects:
Applied sciences
Chemical properties
Curing agents
Exact sciences and technology
Materials science
Moisture
Molecular structure
Monomers
Phenol
Polymer industry, paints, wood
Polymers
Properties and testing
Reproduction
resins
synthesis
Technology of polymers
Thermal properties
Thermogravimetric analysis
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Summary: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.
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.32850