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Epoxy‐water interactions
Author(s) -
Moy P.,
Karasz F. E.
Publication year - 1980
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760200417
Subject(s) - epoxy , materials science , differential scanning calorimetry , polymer , glass transition , sorption , diffusion , composite material , scanning electron microscope , moisture , infrared spectroscopy , chemical engineering , analytical chemistry (journal) , polymer chemistry , thermodynamics , chemistry , organic chemistry , physics , adsorption , engineering
It has been shown that sorbed moisture plasticizes epoxy resins with a resultant depression in the glass transition temperature of the polymer. The nature of the epoxy‐water interaction still requires further investigation. The equilibrium sorption and diffusion of water in a high T g epoxy is examined. Other analytical techniques including differential scanning calorimetry, infrared spectroscopy, electron microscopy and nuclear magnetic resonance are applied to the system. Experimental results suggest that the sorbed water at low concentrations is strongly localized at specific segments or groups in the polymer. Discussion is given relative to the structure‐properties of the epoxy and its possible correlation to the experimental data obtained.