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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/2536

Title: Determination by 13C-NMR spectroscopy of the microstructure of copolymers of acrylic acid with vinyl acetate
Authors: Brar, A S
Keywords: Copolymer
Volumetric titration
Reactivity ratios
Number-average sequence
Issue Date: 1991
Citation: European Polymer Journal,27(1), 17-20p.
Abstract: Acrylic acid-vinyl acetate copolymers were prepared in bulk using benzoyl peroxide as initiator. Copolymer compositions were determined by volumetric titration; monomer reactivity ratios were determined by the method of Kelen-Tüdös. Terminal and penultimate reactivity ratios have been calculated using the observed monomer triad sequence distribution determined from 13C-NMR spectroscopy. Triad sequence distribution was used to calculate dyad concentrations, probability parameters, number-average sequence lengths and comonomer mol fractions in the copolymers. The observed triad sequence concentrations as determined from 13C-NMR agreed well with those calculated from reactivity ratios.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/2536
Appears in Collections:Chemistry

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