| 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.
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| 2. |
The molecular weight of the polyurethanes obtained progressively increased as the amount of initial hexamethylene diisocyanate approximated to the equivalence level.
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| 3. |
There was a linear relationship between the refractive index of the polyurethanes and their hexamethylene diisocyanate content.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2840–2842, December, 1969.
Deceased.