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Poompat Rattanatraicharoen, Yoko Tanaka, Keiko Shintaku, Takuro Kawaguchi, Kazuhiro Yamabuki, Tsutomu Oishi and Kenjiro Onimura Chiral oxazoline substituted optically active poly(m-phenylene)s: Synthesis and coupling polymerizations of (S)-4-benzyl-2-(3,5-dihalidephenyl) oxazoline using transition metal catalysts Journal of Polymer Science Part A: Polymer Chemistry 51

Article first published online: 18 DEC 2012 | DOI: 10.1002/pola.26499

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Optically active poly(m-phenylene)s substituted with chiral oxazoline derivatives have been synthesized by the nickel-catalyzed Yamamoto coupling reaction of optically active (S)-4-benzyl-2-(3,5-dihalidephenyl)oxazoline derivatives. The optical activities of the polymers should be attributed to the higher order structure such as helical conformations. Moreover, the helical conformation could be induced by addition of metal salts into polymer solutions. The polymers showed good thermal stabilities, which was attributable to the oxazoline side chains.

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