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Citation: ZHANG Hong-Tao, HUANG Jin-Xia, JIANG Bing-Bing, LI Xiao-Qin. Studies on Kinetics of Copolymerization and Particle Size for Preparing Monodispersed Crosslinked Polystere Microspheres[J]. Chinese Journal of Applied Chemistry, ;2001, 18(9): 726-730. shu

Studies on Kinetics of Copolymerization and Particle Size for Preparing Monodispersed Crosslinked Polystere Microspheres

1.
The Faculty of Chemistry and Materials Science, Hubei University, Wuhan 430062

Received Date: 23 November 2000
Available Online: 10 April 2001
Fund Project: 国家自然科学基金(29872012和29974007)资助项目 (29872012和29974007)

Mono-size crosslinked polystyrene microspheres(CPS) in average diameter of 4 μm were prepared in a mixture of ethanol and water.The effects of mass fraction of styrene, divinylbenzene and stabilizer PVP on the average particle diameter(D_n) and its distribution, polymerization kinetics and variation of particle numbers in the polymerization were studied.In a certain concentration range, the polymerization rate and average particle size increased with increasing the concentrations of styrene and divinylbenzene, but the particle size distributions broadened and the particle number decreased dramatically.The concentration of stabilizer has no obvious effects on the polymerization rate and particle size distribution, but the particle size decreased and the particle number increased with increasing the stabilizer PVP concentration.
- mono-size crosslinked polystyrene microsphere,
- particle,
- size distribution
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