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Characteristics of medical polymer based on an epoxy resin system—Curing reaction characteristics of biphenol epoxy monomer with phenolic functional hardeners
Author(s) -
Kim S. W.,
Lu M. G.,
Shim M. J.
Publication year - 2001
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.1988
Subject(s) - epoxy , curing (chemistry) , differential scanning calorimetry , materials science , monomer , polymer chemistry , biphenyl , activation energy , thermosetting polymer , isothermal process , polymer , kinetics , chemistry , composite material , organic chemistry , thermodynamics , physics , quantum mechanics
The reaction kinetics of a biphenyl epoxy/polyol system was characterized by an isoconversional mode under dynamic conditions using differential scanning calorimetry (DSC) measurements. The results showed that the curing of epoxy resins involves different reaction stages and the values of activation energy is dependent on the degree of conversion. At the initial stage of cure, the phenol hydroxyl‐epoxy reaction is predominant, then the hydroxyl group generated during curing can catalyze the reaction. The results were supported by the isothermal experiments. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 1495–1503, 2001