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Chemometric study of graft copolymerization of guar‐ g ‐(acrylamide‐ co ‐diallyl dimethylammonium chloride)
Author(s) -
Agarwal Vipul,
McLean Douglas,
Horne James,
Richardson Desmond,
Stack Karen
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.37716
Subject(s) - acrylamide , grafting , copolymer , potassium persulfate , monomer , fourier transform infrared spectroscopy , guar gum , polymer chemistry , chemistry , guar , nuclear chemistry , acryloyl chloride , polymer , organic chemistry , chemical engineering , acrylate , biochemistry , engineering
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), 1 H‐NMR (nuclear magnetic resonance spectroscopy), and 13 C‐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 (0.7 M AM concentration, 60°C reaction temperature, and 1 M acid concentration). © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013