Analysis of the role of complex in the alternating copolymerization of N-vinylpyrrolidone and maleic anhydride

Autor:	T. Földes-Berezsnich, Flóra Fehérvári, Mária Azori, Ferenc Tüdős
Rok vydání:	1987
Předmět:	Reaction mechanism Polymers and Plastics N-Vinylpyrrolidone Maleic anhydride General Chemistry Condensed Matter Physics Charge-transfer complex chemistry.chemical_compound Monomer chemistry Polymer chemistry Materials Chemistry Copolymer Benzene Equilibrium constant
Zdroj:	Polymer Bulletin. 18:225-232
ISSN:	1436-2449 0170-0839
DOI:	10.1007/bf00255114
Popis:	Heterogeneous copolymerization of 1-vinyl-2-pyrrolidone (NVP) and maleic anhydride (MA) initiated with AIBN was studied in benzene at 60 °C, at two different total monomer concentrations. The existence of a charge transfer complex between the comonomers has been shown and its equilibrium constant determined. The chemical composition of the copolymer was examined as a function of the initial monomer ratio, and it was found nearly equimolecular in a wide range of relative monomer concentrations. Studying the dependence of the initial rate of copolymerization (W0) on the monomer composition, significant increase in W0 was found at a mole ratio of NVP/MA=1 when 3 mol· dm−3 total monomer concentration was applied. The compositional equation for the NVP/MA copolymerization system was derived with the consideration of the effect of complex.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::131968a914e31a861a8bc76377289121 https://doi.org/10.1007/bf00255114 Zobrazit plný text záznamu Full text from SpringerLink