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Meihan Dan, Fei Huo, Xu Zhang, Xiaohui Wang and Wangqing Zhang Dispersion RAFT polymerization of 4-vinylpyridine in toluene mediated with the macro-RAFT agent of polystyrene dithiobenzoate: Effect of the macro-RAFT agent chain length and growth of the block copolymer nano-objects Journal of Polymer Science Part A: Polymer Chemistry 51

Article first published online: 5 JAN 2013 | DOI: 10.1002/pola.26527

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The dispersion RAFT polymerization of 4-vinylpyridine in toluene in the presence of the polystyrene dithiobenzoate (PS-CTA) macro-RAFT agent with different chain lengths is discussed. It is found that that the PS-CTA chain length exerts a great influence on the polymerization kinetics, the particle nucleation and the particle morphology of the synthesized block copolymers. That is, short PS-CTA generally leads to fast RAFT polymerization and fast particle nucleation, and tends to produce large-sized vesicles or large-compound micelles.

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