Controlled cationic polymerization of furfuryl alcohol
Künye
closedAccessÖzet
CuCl/N,N,N',N '',N ''-pentamethyldiethylenetriamine catalyst system was used successfully in the controlled cationic polymerization of furfuryl alcohol initiated with benzyl bromide in acetonitrile. Polymerizations were carried out at 110 degrees C open to air. The effect of reaction time, amount of initiator and solvent on the rate of polymerization was studied. The linear kinetic plot of In([M](o)/[M]) versus polymerization time, linear dependence of the molecular weight on the monomer conversion and low polydispersity of the polymers (1.07-1.50) showed the characteristics of the controlled polymerization. Soluble polymers with M-n up to 6.6 kg/mol were obtained. The structural analysis of the polymer was carried out by H-1 NMR, C-13 NMR, FTIR and UV-VIS spectroscopies. Formation of carbonyl groups and -CH2-O-CH2- bridges on poly(furfuryl alcohol) chains were observed. Thermal properties of the polymer were studied by DSC and TGA analyses. (C) 2013 Elsevier Ltd. All rights reserved.
Kaynak
European Polymer JournalCilt
49Sayı
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