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8686830 
Journal Article 
Synthesis of polyurethanes with unsaturated side chains 
Aleev, KM; Ushakov, SN 
1969 
1 
Bulletin of the Academy of Sciences of the USSR. Division of Chemical Science
ISSN: 0568-5230 
18 
12 
2674-2675 
English 
1. Migrational copolymerization of hexamethylene diisocyanate with 2,3-dioxypropyl crotonate yielded linear polyurethanes with unsaturated side chains, these being residues of a monomer capable of copolymerization. 2. The molecular weight of the polyurethanes obtained progressively increased as the amount of initial hexamethylene diisocyanate approximated to the equivalence level. 3. There was a linear relationship between the refractive index of the polyurethanes and their hexamethylene diisocyanate content. 1970 Consultants Bureau.