Abstract
This is the third report on the relationship between the properties and the structure of polyurethane elastomers derived from hydroxyl-terminated liquid polybutadiene (HT-BD). The curative effect of low molecular weight diols was investigated. Previously it was found that the use of aromatic diols presented a processing problem because of its high melting point. To solve this problem, the use of aralkyl diols and alicyclic diols was examined in this paper. The processability was significantly improved by the use of these diols, and the elastomers obtained retained considerably high mechanical properties.
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