Journal
CHINESE CHEMICAL LETTERS
Volume 21, Issue 6, Pages 743-747Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2009.12.022
Keywords
4-Aminophenoxyphthalonitril; 4,4 '-Bis(3,4-dicyanophenoxy)iphenyl; Curing reaction
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A series of phthalonitrile blending resins were prepared from 4-aminophenoxyphthalonitrile (APN) and 4,4'-bis (3,4-dicyanophenoxy)biphenyl (BPH) by directly powder-mixing and copolymerization. Differential scanning calorimeter (DSC) and dynamic rheology were used to study the curing reaction behaviors of APN/BPH blends, and the results indicated that the introduction of APN accelerated the curing rate of BPH, and the existence of BPH decreased the curing temperature of APN/BPH systems. The thermal stability of postcured APN/BPH resins was investigated by thermogravimetric analysis (TGA), and the TGA results indicated that the crosslinked polymers of APN/BPH systems possessed good thermal stability. (C) 2009 Xiao Bo Liu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
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