POLYBUTADIENOLS FOR PRODUCING GLASSY POLYURETHANES
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Mar 3, 2016
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Mar 6, 2015
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Abstract
The invention relates to a process for the production of polybutadienols from polybutadienes with number-average molar mass from 300 to 2000 g/mol comprising from 20 to 50% of 1,4 double bonds and from 50 to 80% of 1,2 vinylic and 1,2 cyclovinylic double bonds, based on the quantity of all of the double bonds, comprising the steps of
- i) epoxidation of some or all of the 1,4 double bonds with an epoxidizing reagent which selectively epoxidizes 1,4 double bonds,ii) reaction of the epoxidized polybutadiene with an alcohol or water to give a polybutadienol.
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