Methods of investigation effect of the type of solvent and precipitant on fractionation of polyurethanes

Autor: M. B. Pestova, V.V. Strakhov, V. M. Golubev, T. A. Sitnikova
Rok vydání: 1975
Předmět:
Zdroj: Polymer Science U.S.S.R.. 17:225-228
ISSN: 0032-3950
DOI: 10.1016/0032-3950(75)90238-5
Popis: A study was made of the effect of several solvent-precipitant systems on result fractionation of polyurethanes obtained from diphenylmethanedi-isocyanate, polyethylene glycoladipate and 1,4-butanediol and systems were recommended for the fractionation of these polymers mainly according to molecular weight (e.g. DMSO-butanol) or chemical composition (e.g. DMPA-methanol).
Databáze: OpenAIRE