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Chemometric Study of Graft Copolymerization of Guar-g-(acrylamideco-diallyl dimethylammonium chloride)

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Agarwal, V and McLean, DS and Horne, J and Richardson, DE (2013) Chemometric Study of Graft Copolymerization of Guar-g-(acrylamideco-diallyl dimethylammonium chloride). Journal of Applied Polymer Science, 127. pp. 3970-3979. ISSN 1097-4628

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Abstract

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, 60C reaction temperature,
and 1M acid concentration). VC

Item Type: Article
Keywords: guar gum; graft copolymers; chemometrics, main effects and interactions effects; radical polymerization; NMR
Journal or Publication Title: Journal of Applied Polymer Science
Page Range: pp. 3970-3979
ISSN: 1097-4628
Identification Number - DOI: 10.1002/app.37716
Additional Information:

Copyright 2012 Wiley Periodicals, Inc.

Date Deposited: 05 Aug 2014 23:35
Last Modified: 18 Nov 2014 05:03
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