Synthesis and Characterization of Poly(Coumarin Ethylenes/Propylenes)
Autor: | Chirag Patel, Dinker I. Brahmbhatt, G. B. Raolji, V. P. Pandya |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | International Journal of Polymeric Materials. 54:667-674 |
ISSN: | 1563-535X 0091-4037 |
DOI: | 10.1080/00914030490499161 |
Popis: | Poly(coumarin ethylenes/propylenes) were prepared by reacting 4-methyl-7-hydroxy- and 4-phenyl-7-hydroxy-coumarins with 1,2-dichloroethane and 1,3-dibromopropane in the presence of aluminum chloride under Friedel-Crafts reaction conditions by varying molar proportion of the catalyst, neat reaction and use of solvent. All poly (coumarin ethylenes/propylenes) were characterized by elemental analysis, IR spectral studies, number average molecular weight determination by non-aqueous conductometric titration, viscosity studies, and thermogravimetry. |
Databáze: | OpenAIRE |
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