Synthesis of Polymers by Using Fluorene. VI. Free-Radical and Anionic Polymerizations of 9-Fluorenyl and 9-Phenyl-9-fluorenyl Methacrylates |
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| Authors: | Tsutomu Oishi Minoru Fujimoto Toshizumi Hirota Shoji Kajigaeshi |
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| Institution: | 1. Department of Industrial Chemistry , Technical College , 2557 Tokiwadai, Ube, Yamaguchi, 755, Japan;2. Department of Industrial Chemistry Faculty of Engineering , Yamaguchi University , 2557 Tokiwadai, Ube, Yamaguchi, 755, Japan |
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| Abstract: | 9-Fluorenyl (FMA) and 9-phenyl-9-fluorenyl methacrylates (PFMA) were prepared from methacryloyl chloride with 9-fluorenol and from silver methacrylate with 9-phenyl-9-fluorenyl chloride, respectively. The polymerizations of FMA and PFMA were studied by using α,α′-azobisisobutyronitrile (AIBN), n-butyllithium (n-BuLi), and n-BuLi-(?)-sparteine (Sp) complex in toluene and tetrahydrofuran (THF). Only PFMA polymers obtained with the n-BuLi-Sp complex showed a specific rotation (α]D 21 ?3 to ?16° in THF). The number-average molecular weights of the FMA and PFMA polymers were 7 700-16 900 and 1 400-4 700, respectively. |
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