POLYURETHANE-POLYSTYRENE INTERPENETRATING NETWORKS

BIAN Xinsheng; CHEN Zhongxiao; ZHANG Qingyu

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POLYURETHANE-POLYSTYRENE INTERPENETRATING NETWORKS

Papers | Updated：2021-06-21

- POLYURETHANE-POLYSTYRENE INTERPENETRATING NETWORKS
- Vol. 4, Issue 4, Pages: 370-376(1986)
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- Published：20 December 1986
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BIAN Xinsheng, CHEN Zhongxiao, ZHANG Qingyu. POLYURETHANE-POLYSTYRENE INTERPENETRATING NETWORKS[J]. 1986, 4(4): 370-376.
DOI：

BIAN Xinsheng, CHEN Zhongxiao, ZHANG Qingyu. POLYURETHANE-POLYSTYRENE INTERPENETRATING NETWORKS[J]. 1986, 4(4): 370-376. DOI：

摘要

A series of polyurethane based on liquid chloroprene-hydroxyethyl methacrylate copolymer(CP-co-HEMA)-polystyrene (PS) interpenetrating polymer networks (PU-PS IPN) were synthe-sized. Some physical properties were examined and density behavior was investigated. In 60% polyurethane (PU) system

the tensile strength and density increased greatly. Transmission electronmicrographs showed that the phase separation existed and the sizes of PS domains dispersed in PUphase were about 500-4

000 A. In comparison with correlative PU-PMMA IPN system

which has the higher compatibility

this system showed an extensive phase separation and clear boundaries.There was no phase inversion observed even for 60% PU system in which PS was still the dispersed phase and PU the continuous phase.This was due to the relatively faster rate of formation of PU than that of ST polymerization.

Abstract

the tensile strength and density increased greatly. Transmission electronmicrographs showed that the phase separation existed and the sizes of PS domains dispersed in PUphase were about 500-4

000 A. In comparison with correlative PU-PMMA IPN system

which has the higher compatibility

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