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Curing of DGEBA epoxy resin by low generation amino‐group‐terminated dendrimers
Author(s) -
Xu DongMei,
Zhang KeDa,
Zhu XiuLin
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24688
Subject(s) - diglycidyl ether , epoxy , curing (chemistry) , dendrimer , thermosetting polymer , differential scanning calorimetry , polymer chemistry , materials science , bisphenol a , diamine , amine gas treating , chemistry , composite material , organic chemistry , physics , thermodynamics
Low generation amino‐group‐terminated poly(ester‐amine) dendrimers PEA1.0 (NH 2 ) 3 and PEA1.5 (NH 2 ) 8 , and poly(amido‐amine) dendrimer PAMAM1.0 (NH 2 ) 4 were used as diglycidyl ether of bisphenol A (DGEBA) epoxy resin hardeners. Thermal behavior and curing kinetics of dendrimer/DGEBA systems were investigated by means of differential scanning calorimetry (DSC). Compared with ethylene diamine (EDA)/DGEBA system, the dendrimer/DGEBA systems gradually liberated heat in two stages during the curing process, and the total heat liberated was less. Apparent activation energy and curing reaction rate constants for dendrimer and EDA/DGEBA systems were estimated. Thermal stabilities and mechanical properties of cured thermosetting systems were examined as well. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 3902–3906, 2006