Identification of block copolymers and determination of their purity by thin-layer chromatography

Autor: E.S. Gankina, I.I. Efimova, B.G. Belen'kii, J.J. Kever
Rok vydání: 1987
Předmět:
Zdroj: Talanta. 34:167-174
ISSN: 0039-9140
DOI: 10.1016/0039-9140(87)80021-8
Popis: The application of adsorption, precipitation and extraction thin-layer chromatography to the identification of block copolymers, determination of their homogeneity (mixtures of homopolymers), and evaluation of their compositional homogeneity by one- and two-dimensional, multistage and gradient methods, is described. To detect the polymers on the thin-layer plate, various methods of detection are used, including those specific for each component of the block copolymer. Examples of analysis of the following block copolymers by thin-layer chromatography are reported: PS—PMMA, PS—PB, PS—PAN, PS—PBG, PI—PMS—PI, PMMA—PBMA, PMMA—PBG, PS—PEO.
Databáze: OpenAIRE