Preparation of Narrow or Monodisperse Polymer Microspheres with Cyano Group by Distillation-Precipitation Polymerization

摘要

Narrow-or monodisperse poly(divinylbenzene-co-acrylonitrile)(poly(DVB-co-AN))microspheres with reactive cyano group were prepared by distillation-precipitation polymerization of divinylbenzene(DVB)and acrylonitrile(AN)in neat acetonitrile with 2,2'-azobis(isobutyronitrile)(AIBN)as initiator in the absence of any stabilizer or additive without stirring.The effects of the comonomer feed on the morphology and the size of poly(DVB-co-AN)microspheres were investigated.All the polymer microspheres were characterized with scanning electron microscopy and FT-IR spectra.