Poly(9-fluoreneyl methacrylate) was obtained through anionic polymerization with t-BuLi and t-BuMgBr and through radical polymerization with α,α′-azobisisobutyronitrile. Anionic polymerization with t-BuLi in tetrahydrofuran and radical polymerization afforded syndiotactic polymers (rr ∼ 90%), whereas anionic polymerization with Li and Mg initiators in toluene and CH₂Cl₂ led to isotactic polymers. The thermal and photophysical properties of the polymers were examined. A syndiotactic polymer tended to show higher glass transition and decomposition temperatures than an isotactic polymer. However, polymers with different tacticities were not likely to assume specific, distinctive conformations such as a helix or a π-stacked conformation in solution. An isotactic polymer showed stronger interactions in a CH₂Cl₂ solution with 2,4,7-trinitro-9-fluorenylidenemalononitrile, an electron-acceptor molecule, than a syndiotactic polymer. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 4656–4665, 2004

中文翻译：

---

甲基丙烯酸9-芴基的立体定向聚合：规整度对聚合物的热和光物理性质的影响

聚（9- fluoreneyl甲基丙烯酸酯）中的溶液通过阴离子聚合得到的具有吨正丁基锂和吨-BuMgBr并通过与α，α'偶氮二异丁腈自由基聚合。在四氢呋喃中用t- BuLi进行阴离子聚合和自由基聚合可得到间同立构聚合物（rr〜90％），而在甲苯和CH ₂ Cl ₂中用Li和Mg引发剂进行阴离子聚合。导致等规聚合物。检查了聚合物的热和光物理性质。间规聚合物倾向于显示出比等规聚合物更高的玻璃化转变和分解温度。但是，具有不同立构规整度的聚合物不太可能在溶液中呈现特定的，独特的构象，例如螺旋或π堆积构象。与间规聚合物相比，等规聚合物在CH ₂ Cl ₂溶液中与电子受体分子2,4,7-三硝基-9-芴基亚甲基丙二腈的相互作用更强。©2004 Wiley Periodicals，Inc. J Polym Sci A部分：Polym Chem 42：4656-4665，2004年