发明名称 |
METHOD FOR PREPARING CROSSLINKED POLYSTYRENE PARTICLES BY PRECIPITATION POLYMERIZATION TO INCREASE PARTICLE DIAMETER SO AS TO BE USEFULLY APPLIED TO INFORMATION TECHNOLOGY OR PRECISION EQUIPMENT |
摘要 |
PURPOSE: A method for preparing crosslinked polystyrene particles is provided to increase the particle diameter and form a stabilized spheric shape. The crosslinked polystyrene particles can be advantageously used in various fields as a standard material for calibration of an analysis device, a column filler for chromatography and a supporter used in a biochemical field. CONSTITUTION: The method for preparing crosslinked polystyrene particles by means of precipitation polymerization comprises the use of a styrene monomer, a solvent, a crosslinking agent and a polymerization initiator, wherein the solvent is singly acetonitrile, or a mixture of acetonitrile as a main solvent and an organic solvent with solubility parameter of 8.5-15(cal/cm¬3)1/2 or water as a cosolvent, wherein the crosslinking agent is a mixture of one or two compounds selected from divinyl benzene or acrylates, and wherein the precipitation polymerization is carried out under the conditions of 40-90deg.C at 10-200rpm of a stirring speed for 6-48 hours.
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申请公布号 |
KR20040093322(A) |
申请公布日期 |
2004.11.05 |
申请号 |
KR20030027202 |
申请日期 |
2003.04.29 |
申请人 |
CHOE, SOON JA;HONGIN TECH CO., LTD.;SHIM, SANG EUN |
发明人 |
CHOE, SOON JA;SHIM, SANG EUN;YANG, SEON HYE |
分类号 |
C08F2/18;(IPC1-7):C08F2/18 |
主分类号 |
C08F2/18 |
代理机构 |
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地址 |
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