Poly(2,6-dimethyl-1,4-phenylene oxide)-poly(methyl methacrylate) interpenetrating polymer networks

Two-component simultaneous interpenetrating polymer networks (SINs)of brominated poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) cross-linked with ethylenediamine (EDA) and poly(methyl methacrylate) (PMMA) cross-linked with ethylene glycol dimethacrylate (EGDMA) were prepared. The estimated molecular w...

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Veröffentlicht in:Macromolecules 1990-03, Vol.23 (2), p.375-377
Hauptverfasser: Singh, Sunita, Frisch, Harry L, Ghiradella, Helen
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creator Singh, Sunita
Frisch, Harry L
Ghiradella, Helen
description Two-component simultaneous interpenetrating polymer networks (SINs)of brominated poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) cross-linked with ethylenediamine (EDA) and poly(methyl methacrylate) (PMMA) cross-linked with ethylene glycol dimethacrylate (EGDMA) were prepared. The estimated molecular weights between cross-links (M sub e ) from the stoichiometry of the PPO and PMMA networks were 6000 and 7900, respectively. Differential scanning calorimetry (DSC) measurements show that the IPNs have a single glass transition (T sub g ) intermediate in temperature to the T sub g s of the component networks. Transmission electron micrographs also are consistent with a single-phase morphology. A maximum in tensile strength significantly higher than the tensile strengths of a component network occurred at an intermediate composition, just as has been observed for the PPO/polystyrene IPNs. . 8 ref.--AA
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The estimated molecular weights between cross-links (M sub e ) from the stoichiometry of the PPO and PMMA networks were 6000 and 7900, respectively. Differential scanning calorimetry (DSC) measurements show that the IPNs have a single glass transition (T sub g ) intermediate in temperature to the T sub g s of the component networks. Transmission electron micrographs also are consistent with a single-phase morphology. 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subjects Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymers with particular structures
Preparation, kinetics, thermodynamics, mechanism and catalysts
title Poly(2,6-dimethyl-1,4-phenylene oxide)-poly(methyl methacrylate) interpenetrating polymer networks
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