Synthesis of highly crosslinked monodisperse polymer particles: Effect of reaction parameters on the size and size distribution
J. Choi
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea
Search for more papers by this authorCorresponding Author
S.-Y. Kwak
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, KoreaSearch for more papers by this authorS. Kang
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorS.-S. Lee
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorM. Park
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorS. Lim
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorJ. Kim
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorC. R. Choe
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorS. I. Hong
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea
Search for more papers by this authorJ. Choi
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea
Search for more papers by this authorCorresponding Author
S.-Y. Kwak
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, KoreaSearch for more papers by this authorS. Kang
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorS.-S. Lee
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorM. Park
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorS. Lim
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorJ. Kim
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorC. R. Choe
Polymer Hybrids Research Center, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul 136-791, Korea
Search for more papers by this authorS. I. Hong
Hyperstructured Organic Materials Research Center (HOMRC) and School of Materials Science and Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea
Search for more papers by this authorAbstract
Monodisperse polystyrene particles crosslinked with different concentrations of divinylbenzene were synthesized in the 3.2–9.1 μm size range by dispersion polymerization in an isopropyl alcohol/toluene mixed-dispersion medium with poly(N-vinylpyrrolidone) as a steric stabilizer and 2,2′-azobisisobutyronitrile as a radical initiator. The effects of the reaction parameters such as the crosslinking agent concentration, media solvency (controlled by varying the amount of toluene addition), the initiator concentration, and the stabilizer concentration on the particle size and size distribution were investigated with reference particles with a monodisperse size distribution and crosslinked by 1.5 wt % divinylbenzene. The appropriate increase in media solvency was a prerequisite for preparing crosslinked particles without coagulated and/or odd-shaped particles. The investigation of the effects of the polymerization parameters also shows that only specific sets of conditions produce particles with a monodisperse size distribution. The glass-transition temperatures of the particles increased with increasing divinylbenzene concentration. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 40: 4368–4377, 2002
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