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Polymerization and thermal behaviors of poly[dimethyl(acrylamidopropyl)ammonium propane sulfonate] poly (DMAAPS)
Author(s) -
Lee WenFu,
Tsai ChanChang
Publication year - 1995
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.1995.070580903
Subject(s) - monomer , polymer chemistry , polymerization , activation energy , reactivity (psychology) , chemistry , sulfonate , aqueous solution , propane , polymer , ammonium , nitrogen , organic chemistry , medicine , alternative medicine , sodium , pathology
The conversion in the free radical polymerization of zwitterionic sulfobetaine monomer [dimethyl(acrylamidopropyl)ammonium propanesulfonate] (DMAAPS) was investigated under various conditions, such as, monomer concentration, reaction time and temperature, and various salts. The high conversion of DMAAPS monomer could be achieved under lower temperature. The conversion of DMAAPS is enhanced in the presence of various salts in aqueous solution, but is not very significant because the reactivity of DMAAPS is very rapid even at lower temperature and lower concentration of the monomer. The thermal behavior of poly(DMAAPS) was also studied under nitrogen and air atmosphere at various heating rates. The kinetic parameters such as activation energy, preexponential factor, and reaction order were determined by Ozawa's method. Thermal degradation of such a polymer occurs in two and three stages in nitrogen and air atmospheres, respectively. © 1995 John Wiley & Sons, Inc.