HYDROXY-TERMINATED ARYL ETHER-SULFONE OLIGOMERS AS CURING AGENTS FOR EPOXY RESINS-SYNTHESIS, CHARACTERIZATION AND THERMAL STUDY

Citation
Rt. Patel et al., HYDROXY-TERMINATED ARYL ETHER-SULFONE OLIGOMERS AS CURING AGENTS FOR EPOXY RESINS-SYNTHESIS, CHARACTERIZATION AND THERMAL STUDY, Phosphorus, sulfur and silicon and the related elements, 89(1-4), 1994, pp. 113-117
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
10426507
Volume
89
Issue
1-4
Year of publication
1994
Pages
113 - 117
Database
ISI
SICI code
1042-6507(1994)89:1-4<113:HAEOAC>2.0.ZU;2-Q
Abstract
Oligomeric aryl ether sulfones were prepared by aromatic nucleophilic substitution reactions of 4,4'-dichlorodiphenyl sulfone with 4,4'-isop ropylidenediphenol and 4,4'-(1,1-cyclohexylidene)diphenol. The resulta nt products were characterized by elemental analysis, IR spectral data , gel permeation chromatography and thermogravimetry. These low molecu lar weight oligomers were used as curing agents for epoxy resins. The curing kinetic study was made by differential scanning calorimetry. Th e cured epoxy resins were observed to possess better heat resistance c ompared to the resins cured with the traditional curing agents (4,4-di amino diphenyl sulfone or phthalic anhydride).