IMPROVED METHOD OF SUSPENSION POLYMERIZATION OF N-VINYLCARBAZOLE
N-乙烯基咔唑悬浮聚合方法的改进

In this article an improved method of suspension polymerization of N-vinylcar-bazole is introduced. Instead of common zinc oxide powder we use photosensitive zinc oxide powder as dispersion agent. Thus, photosensitivity of polymer is increased. Using benzene in place of chlorobenzene to dissolve initiator can lower the temperature of polymerization. The initator can be dissoved in hot water without using organic solvent and the resulting solution is added to reactants mixture to initiate the polymerization reaction. In this procedure,less reagents are used and pollution isdimini-shed.