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Synthesis of Star Polymers Based on Xanthate‐Mediated Controlled Radical Polymerization of N ‐Vinylcarbazole
Author(s) -
Mori Hideharu,
Ookuma Hiroshi,
Endo Takeshi
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200750411
Subject(s) - xanthate , chain transfer , polymerization , reversible addition−fragmentation chain transfer polymerization , polymer chemistry , raft , radical polymerization , ionic polymerization , chemistry , living polymerization , cationic polymerization , living free radical polymerization , polymer , chain growth polymerization , materials science , organic chemistry
Poly( N ‐vinylcarbazole) [poly(NVC)] stars were synthesized by macromolecular design via interchange of xanthate (MADIX)/reversible addition‐fragmentation chain transfer (RAFT) polymerization. Four‐armed poly(NVC) stars with controlled molecular weights and low polydispersities were obtained using a tetrafunctional xanthate, in which the stabilizing groups are linked to the core. The controlled character of the polymerization was also confirmed by the linear increase in the molecular weight with the conversion. The comparison of the polymerization behaviors using the tetrafunctional xanthate and a monofunctional one suggested that the multifunctional core has a clear effect on the polymerization kinetics, but has no significant influence on the controlled character of the polymerization.