알콜 분산매 하에서 양쪽성 개시제를 사용한 스타이렌의 분산중합

초록

The polystyrene (PS) microspheres were produced by dispersion polymerization in alcohol medium using a novel amphoteric initiator, 2,2?azobis [N-(2-carboxyethyl)-2-2-methylpropionamidine] hydrate (VA-057). The PS microspheres synthesized with VA-057 were more monodisperse and larger in size than those prepared by a conventional initiator such as AIBN or BPO. The average diameter of the PS microspheres was 2.0 ?2.5 mm and the coefficient of variation of the particles was ranging 2.5 ?4.0 % with the varying concentration of the stabilizer, poly(vinyl pyrrolidone).