TY - JOUR
T1 - FT-IR analysis of the effects of polymeric additives on epoxy homopolymerization or hydroxyl exchanges
AU - Woo, Eamor M.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - Effects of polymeric additives, bisphenol-A polycarbonate, polyetherimide, and poly(hydroxyl ether of bisphenol-A), in epoxy systems on the epoxide reactivities were examined. No hardeners were used in the polymer/epoxy mixtures to exclude complications from crosslinking cure reactions. The epoxy/polymer mixtures upon heating at several selected isothermal temperatures were investigated using FT-IR analysis. Similar rates of decrease in the epoxide absorbance peak intensity were observed, which suggests that the polymeric additives exert no effect on the epoxide conversion rate in the absence of any hardeners. However, the production of the hydroxy groups was influenced by PC, but not by the other polymers (poly(ether imide) or phenoxy) investigated. Exchange reactions between the pendant -OH of the epoxy with the carbonate of PC might be responsible.
AB - Effects of polymeric additives, bisphenol-A polycarbonate, polyetherimide, and poly(hydroxyl ether of bisphenol-A), in epoxy systems on the epoxide reactivities were examined. No hardeners were used in the polymer/epoxy mixtures to exclude complications from crosslinking cure reactions. The epoxy/polymer mixtures upon heating at several selected isothermal temperatures were investigated using FT-IR analysis. Similar rates of decrease in the epoxide absorbance peak intensity were observed, which suggests that the polymeric additives exert no effect on the epoxide conversion rate in the absence of any hardeners. However, the production of the hydroxy groups was influenced by PC, but not by the other polymers (poly(ether imide) or phenoxy) investigated. Exchange reactions between the pendant -OH of the epoxy with the carbonate of PC might be responsible.
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U2 - 10.1295/polymj.29.523
DO - 10.1295/polymj.29.523
M3 - Article
AN - SCOPUS:0030702420
VL - 29
SP - 523
EP - 528
JO - Polymer Journal
JF - Polymer Journal
SN - 0032-3896
IS - 6
ER -