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POLYETHER-BASED MDI-BDO SEGMENTED POLYURETHANE SINGLE CRYSTAL~*
<正> 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 or
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Chinese Science Bulletin
1989年10期

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