Studies on Polyether-Polyurethane/Polymethyl Methacrylate Interpenetrating Polymer Networks

Abstract

Abstract: In this article we determined the stress-strain, morphology and mechanical properties of interpenetrating polymer networks of PE-PU/PMMA. The effect of the crosslinking, chain extending and intercrosslinking agent and the compositional ratio of PE-PU/PMMAon the mechanical properties were invesitgated. The results show that the sample with the composition ratio of PE-PU/PMMA=25/75 exhibits the highest mechanical properties which has a yield point and hehaves like leathery materials. The results of the dynamic mechnical properties and morphology show that a great phase separation occurs in this system. The compatibility of the two composition is remarkably improved by adding chain extending agent and intercrosslinking agent.

Key words: Interpenetrating polymer networks, Polyurethane, Polymethyl methacrylate

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Li Yu-wei, Yuan Sheng-hui, Wang Jing-yuan, Tang Xin-yi . Studies on Polyether-Polyurethane/Polymethyl Methacrylate Interpenetrating Polymer Networks[J]. Chem. J. Chinese Universities, 1991, 12(2): 271.

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Studies on Polyether-Polyurethane/Polymethyl Methacrylate Interpenetrating Polymer Networks

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