TY - GEN
T1 - FLUOROELASTOMER-MODIFIED THERMOSET RESINS.
AU - Mijovic, Jovan
AU - Pearce, Eli M.
AU - Foun, C. C.
PY - 1984
Y1 - 1984
N2 - Toughening of epoxy and polyimide matrices with fluorocarbon elastomers was investigated. The introduction of polar groups into the fluorocarbon backbone gave rise to compatible blends of elastomer and partially cured epoxy matrix. During postcure, however, the elastomer phase separated out. Through a careful control of postcure conditions, production of 'tailor-made' morphology and, consequently, physical-mechanical properties may be possible. In epoxy blends, a bimodal distribution of the elastomer particle size and a concomitant fourfold increase in the critical strain energy release rate were found. Blends containing the polyimide matrix were incompatible at all stages of cure. The effect of addition of elastomer on thermal stability of the blend was more pronounced with the polyimide than the epoxy matrix.
AB - Toughening of epoxy and polyimide matrices with fluorocarbon elastomers was investigated. The introduction of polar groups into the fluorocarbon backbone gave rise to compatible blends of elastomer and partially cured epoxy matrix. During postcure, however, the elastomer phase separated out. Through a careful control of postcure conditions, production of 'tailor-made' morphology and, consequently, physical-mechanical properties may be possible. In epoxy blends, a bimodal distribution of the elastomer particle size and a concomitant fourfold increase in the critical strain energy release rate were found. Blends containing the polyimide matrix were incompatible at all stages of cure. The effect of addition of elastomer on thermal stability of the blend was more pronounced with the polyimide than the epoxy matrix.
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U2 - 10.1021/ba-1984-0208.ch018
DO - 10.1021/ba-1984-0208.ch018
M3 - Conference contribution
AN - SCOPUS:0021665581
SN - 084120828X
SN - 9780841208285
T3 - Advances in Chemistry Series
SP - 293
EP - 307
BT - Advances in Chemistry Series
PB - ACS
ER -