화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.12, No.2, 213-218, April, 2004
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Dispersion Polymerization of Acrylamide in t-Butyl Alcohol/Water Media
Ki-Chang Lee†, Seung-Eun Lee, Yoo-Jin Choi, and Bong-Keun Song1
  • Department of Polymer Sci. & Eng., Engineering Research Institute, Gyeongsang National University, Jinju 660-701, Korea
  • 1Pulp and Paper Research Lab., Korea Institute of Chemical Technology, P.O. BOX 107, Yusung, Daejeon 305-600, Korea
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We have performed dispersion polymerization of acrylamide in tert-butyl alcohol/water mixture-using hydroxypropyl cellulose and ammonium persulfate as the stabilizer and the initiator, respectively-to study the effects that the concentration of monomer, initiator, and stabilizer, the tert-butyl alcohol/water ratios as polymerization media, and the reaction temperature have on, among other things, the polymerization kinetics, particle sizes, and olecular weights. The polymerization rate increased upon increasing the concentration of the monomer, initiator, and stabilizer, the water content in the tert-butyl alcohol/water media, and the polymerization temperature. The average particle size of the lattices increased upon increasing the concentration of initiator, the polymerization temperature, and the water content in the tert-butyl alcohol/water media, but it decreased upon increasing the concentration of monomer and stabilizer. The viscosity-average molecular weight increased upon increasing the concentration of monomer and stabilizer and the water content in the tert-butyl alcohol/water media, but it decreased upon increasing both the concentration of initiator and the polymerization temperature.
Keywords:dispersion polymerization;acrylamide;dilatometer;polymerization kinetics;particle size and molecular weight.
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