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 |
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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 |
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