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Chemometric study of graft copolymerization of guar-g-(acrylamide-co-diallyl dimethylammonium chloride)

journal contribution
posted on 2023-05-17, 15:12 authored by Agarwal, V, McLean, D, Horne, J, Richardson, D, Karen Stack
Chemometrics was employed to study the effect of various reaction conditions on the graft copolymerization of acrylamide (AM) and diallyl dimethylammonium chloride (DADMAC) onto guar gum using the cerous sulfate and potassium persulfate complex initiation system. A two level full factorial design was used to study the effect of reaction parameters on percentage grafting (%G) and monomer conversion (%MC). Synthesized polymers were characterized using Fourier transform infrared spectroscopy (FTIR), 1H-NMR (nuclear magnetic resonance spectroscopy), and 13C-NMR and also were analyzed for differences in intrinsic viscosity and charge incurred with changing reaction conditions. The concentration of AM was observed to have the greater effect on %grafting. Interaction effects between the reaction temperature and concentration of AM were also found to be important. Under the reaction condition studied, the highest grafting (%G) was obtained for polymer 1 (0.7M AM concentration, 60°C reaction temperature, and 1M acid concentration).

History

Publication title

Journal of Applied Polymer Science

Volume

127

Issue

5

Pagination

3970-3979

ISSN

0021-8995

Department/School

School of Natural Sciences

Publisher

John Wiley & Sons Inc

Place of publication

United States

Rights statement

Copyright 2012 Wiley Periodicals, Inc.

Repository Status

  • Restricted

Socio-economic Objectives

Paper products and pulp

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