Influence of compositional heterogeneity on the structure, phase state and properties of concentrated solutions of polycarbonate-polydimethylsiloxane block copolymers and on the product membranes

Autor:	V.V. Kireyev, L.K. Tsivinskaya, G.I. Listvoin, I.M. Raigorodskii, E.Sh. Gol'dberg
Rok vydání:	1991
Předmět:	Bisphenol A Polydimethylsiloxane Chemistry General Engineering Concentration effect chemistry.chemical_compound Membrane Chemical engineering Permeability (electromagnetism) visual_art Polymer chemistry Copolymer visual_art.visual_art_medium Semipermeable membrane Polycarbonate
Zdroj:	Polymer Science U.S.S.R.. 33:695-701
ISSN:	0032-3950
DOI:	10.1016/0032-3950(91)90125-a
Popis:	A study was made of structural transitions occuring in concentrated solutions of the polyblock polycarbonate-polydimethylsiloxane block copolymers with various degrees of compositional heterogeneity. An increase in the degree of heterogeneity is accompanied by growth of the supermolecular formations in solution, and lead to the appearance of micellar structures. The structure and the permeability of membranes is related to the phase state of the solutions, and also to the degree of heterogeneity of samples of the block copolymers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f245b5214f938d1c1ee565f300b09bc9 https://doi.org/10.1016/0032-3950(91)90125-a Zobrazit plný text záznamu