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Dispersion copolymerization of acrylamide and dimethyl diallyl ammonium chloride in ethanol‐water solution
Author(s) -
Wang Xiaona,
Yue Qinyan,
Gao Baoyu,
Si Xiaohui,
Sun Xun,
Zhang Shengxiao
Publication year - 2010
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.33288
Subject(s) - copolymer , monomer , acrylamide , polymer chemistry , polymerization , dispersion polymerization , ammonium chloride , nuclear chemistry , chemistry , intrinsic viscosity , chloride , materials science , polymer , organic chemistry
Poly (acrylamide‐dimethyldiallylammonium chloride) (PAM‐DMDAAC) particles have been prepared via dispersion polymerizations using poly (vinyl pyrrolidone) (PVP) as a steric stabilizer in ethanol‐water media. The monomer reactivity ratios of acrylamide (AM, r 1 ) and dimethyldiallylammonium chloride (DMDAAC, r 2 ) were determined as 6.664 and 0.120, respectively, which means that PAM‐DMDAAC is a nonideal copolymer. The effects of various polymerization parameters (e.g., concentration of monomer and initiator, medium polarity, the ratio of AM to DMDAAC, initial temperature and ethylene diamine tetraacetic acid disodium (EDTA)) on the intrinsic viscosity and conversion of copolymer have been investigated. The copolymer was characterized by FTIR and NMR. The optimum operating conditions for preparing PAM‐DMDAAC were determined as ethanol content 50%, C monomer (wt %) 40%, n AM : n DMDAAC 8 : 2, C initiator (wt %) 0.04% and initiate temperature 40°C. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011