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Dispersion polymerization of acrylamide in methanol/water media

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Abstract

Dispersion polymerization of acrylamide was carried out in the media of methyl alcohol/H2O mixtures using hydroxypropyl cellulose and ammonium persulfate as steric stabilizer and initiator, respectively. The effects of concentrations of initiator and steric stabilizer, amount of monomer, polymerization temperature, methyl alcohol/ H2O ratio, and purification of monomer and nitrogen purge on the particle size of the latices and molecular weight of the polymers were investigated. The average particle diameter increased with increasing concentration of initiator, water content in methyl alcohol/H2O media, and polymerization temperature, but decreased with monomer and stabilizer concentrations. The viscosity average molecular weight increased with increasing concentrations of monomer, steric stabilizer, and water content in dispersion media, but decreased with initiator concentration and polymerization temperature. The PAM polymers prepared with the purified monomer and the nitrogen purging before the reaction showed the highest molecular weight.

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Authors and Affiliations

  1. Department of Polymer Sci. & Eng., Engineering Research Institute, Gyeongsang National University, 660-701, Jinju, Korea

    Ki-Chang Lee & Seung-Eun Lee

  2. Pulp and Paper Research Lab., Korea Institute of Chemical Technology, Yusung, P.O. BOX 107, Taejon, 305-600, Korea

    Bong-Keun Song

Authors
  1. Ki-Chang Lee
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  2. Seung-Eun Lee
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  3. Bong-Keun Song
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Lee, KC., Lee, SE. & Song, BK. Dispersion polymerization of acrylamide in methanol/water media. Macromol. Res. 10, 140–144 (2002). https://doi.org/10.1007/BF03218263

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  • DOI: https://doi.org/10.1007/BF03218263

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