A PMR study of the structure of siloxane-urethane copolymers and of some correlations in non-equilibrium, heterogeneous copolycondensation

Autor: I.Ya. Slonim, V.A. Savin, S.G. Alekseyeva, I.M. Raigorodskii, E.Sh. Gol'dberg, Ya.G. Urman
Rok vydání: 1978
Předmět:
Zdroj: Polymer Science U.S.S.R.. 20:1673-1678
ISSN: 0032-3950
DOI: 10.1016/0032-3950(78)90421-5
Popis: The composition and structure of siloxane-urethane copolymers obtained by non-equilibrium, low temperature polycondensation, have been investigated by PMR spectroscopy. It is shown that in one stage, non-equilibrium, heterogeneous copoly-condensation, block copolymers are formed, regardless of the method used for the reaction or the rate of the intermonomer.
Databáze: OpenAIRE