FINE HIGH-PERMITTIVITY ORGANIC POLYMER PARTICLE, ITS PRODUCTION, AND HIGH-PERMITTIVITY ORGANIC POLYMER MATERIAL

摘要

PURPOSE: To obtain fine high-permittivity org. polymer particles by subjecting a cyanoethyl compd. to soln. polymn. in a polymer soln. to form fine polymer particles having a specified average particle size and permittivity. ;CONSTITUTION: Fine high-permittivity org. polymer particles having an average particle size of 0.1-10μm and a permittivity of 10-50 are obtd. by dissolving a matrix polymer (e.g. polyvinyl methyl ether) in a solvent (e.g. ethanol), adding to the soln. a cyanoethyl compd. selected from among cyanoethylacrylamide, cyanoethylmethylolacrylamide, cyanoethyl hydroxyacrylate, etc., a cross-linker, a polymn. initiator, etc., stirring the soln. under an N₂ flow at about 40-80°C for about 1-20hr, washing the resulting polymer particles with ethanol, etc., and centrifuging and vacuum-drying the particles. The high-permittivity particles are dispersed in a concn. of 5-90wt.% in an org. material (e.g. PS or a polycarbonate) to give a high-permittivity org. polymer material.;COPYRIGHT: (C)1996,JPO