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- Title
Epoxy/poly(benzyl methacrylate) blends: miscibility, phase separation on curing and morphology.
- Authors
Arribas, C.; Masegosa, Rosa; Salom, C.; Arévalo, E.; Prolongo, S.; Prolongo, Margarita
- Abstract
Diglycidyl ether of bisfenol-A (DGEBA)/polybenzyl methacrylate (PBzMA) blends cured with 4,4’-diaminodiphenylmethane (DDM) were studied. Miscibility, phase separation, cure kinetics and morphology were investigated through differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). Non-reactive DGEBA/PBzMA blends are miscible over the whole composition range. The addition of PBzMA to the reactive (DGEBA+DDM) mixture slows down the curing rate, although the reaction mechanism remains autocatalytic. On curing, initially miscible (DGEBA+DDM)/PBzMA blends phase separate, arising two glass transition temperatures that correspond to a PBzMA-rich phase and to epoxy network. Cured epoxy/PBzMA blends present different morphologies as a function of the PBzMA content.
- Subjects
EPOXY compounds; BENZYLAMINOPURINE; METHYL methacrylate; CURING; MORPHOLOGY; CALORIMETRY
- Publication
Journal of Thermal Analysis & Calorimetry, 2006, Vol 86, Issue 3, p693
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-006-7895-5