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通过自由基共聚合的方法制备了一系列乙烯基咔唑/丙烯酸丁酯(NVC/BA)的共聚物,发现NVC能和BA进行较好的共聚合反应,投料比和共聚产物中的各单元组成比接近.通过TEM观察,加入的共聚单体BA可以大大改善了聚乙烯基咔唑(PVK)的成膜性能.也对掺有C60的PVK的均聚和共聚物的光电导性能进行了研究,实验结果表明C60的加入可以大大增进PVK的光电导性能,并且随着C60的增加光电导性能增强;共聚体系的光电导性能也很好,共聚物中BA单体的摩尔分数约50%,其光电导性能与纯PVK相当,而成膜性能非常好,进一步增加BA的含量,光电导性能有所下降.在不影响PVK/C60体系光电导的情况下,可以通过共采来改善该体系的成膜性能.
A series of copolymers of vinylcarbazole / butyl acrylate (NVC / BA) were prepared by free radical copolymerization. It was found that NVC could copolymerize well with BA. The ratio of feedstock to each unit in the copolymerization product Composition ratio close. By TEM observation, the addition of comonomer BA can greatly improve the film-forming properties of polyvinyl carbazole (PVK). The photoconductivity of PVK homopolymer and copolymer doped with C60 was also studied. The experimental results show that the addition of C60 can greatly improve the photoconductivity of PVK, and the photoconductivity of PVK increases with the increase of C60. The photoconductivity is also very good. The mole fraction of BA monomer in the copolymer is about 50%. Its photoconductivity is equivalent to that of pure PVK. The film forming properties are very good. The content of BA is further increased and the photoconductivity is decreased. Without affecting the photoconductivity of the PVK / C60 system, the film-forming properties of the system can be improved by co-mining.