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机构地区:[1]Department of Chemistry, Peking University
出 处:《Chinese Science Bulletin》1989年第10期838-842,共5页
基 金:Project supported by the National Natural Science Foundation of China.
摘 要:Polyurethane elastomers are segmented co-polymers of alternating hard and soft segments which are based on various low molecular weight polyesters, polyethers or polybutadienes that are terminated with hydroxyl groups. The hard segments consist of diisocyanates and chain extenders or cross-linking agents which can be diols
关 键 词:polyether-polyurethane SEGMENTED COPOLYMER morphology single crystal.
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