Complete analysis of the functionality types distribution of linear epoxide resins based on a chromatographic study of the macromolecules in the critical region

Autor:	S.S. Verenich, V.I. Petinov, A. V. Gorshkov, M.A. Markevich, S.G. Entelis, V.V. Yevreinov
Rok vydání:	1989
Předmět:	Chromatography Bisphenol Chemistry General Engineering Chemical modification Epoxide Model synthesis Epoxy Structural heterogeneity chemistry.chemical_compound visual_art visual_art.visual_art_medium Organic chemistry Epichlorohydrin Macromolecule
Zdroj:	Polymer Science U.S.S.R.. 31:2064-2075
ISSN:	0032-3950
Popis:	The structural heterogeneity of epoxy resins based on bisphenol and epichlorohydrin has been studied by chromatographic analysis of the macromolecules in the critical region of separation. As a result of side reactions 14 types of functionally defective macromolecules are formed, in addition to the main product, i.e. the diepoxide. The number of these defective macromolecules may be very considerable. Chemical modification of the endgroups and a model synthesis were carried out to facilitate interpretation of chromatograms of the epoxy resins in the critical region. The chromatographic system and the separation conditions were selected so that a fine and full analysis could be carried out under an isocratic regime covering both the main product and most of the side products obtained in the synthesis of the epoxydiane resins.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::73741ec67ab8f40bf74e78df9eded568 https://doi.org/10.1016/0032-3950(89)90427-9 Zobrazit plný text záznamu