Jaiyen Kanticha, Mekcham Sirilak, Shimoyama Daisuke, Ohira Akihiro, Nomura Kotohiro
Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan.
National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan.
ACS Macro Lett. 2025 Mar 18;14(3):335-340. doi: 10.1021/acsmacrolett.4c00845. Epub 2025 Mar 5.
-Specific (99% ) and -specific (90% ) syntheses of functionalized bottlebrush polymers (BBPs) by living ring opening metathesis polymerization (ROMP) of --substituted norbornene-2,3-dicarboximides (NDIs) containing terthiophene (3T) and pyrene (Pyr) moieties connected to a long methylene spacer (-dodecyl) have been demonstrated by the (arylimido)-vanadium(V)-alkylidene catalysts in toluene at 50 °C. Thermal properties in the resultant BBPs measured by DSC thermograms are affected by the / selectivity; the resultant -BBPs containing 3T possessed a melting temperature at 111.2 °C, whereas the corresponding -BBPs are amorphous. The differences in -/-BBPs (containing 3T, Pyr) toward the emission properties have also been demonstrated due to a different degree in the inter/intra-polymer interaction through the functionality.
通过（芳基亚氨基）钒（V）-亚烷基催化剂在50℃下于甲苯中进行含三联噻吩（3T）和芘（Pyr）基团且连接有长亚甲基间隔基（-十二烷基）的α-取代降冰片烯-2,3-二甲酰亚胺（NDI）的活性开环易位聚合（ROMP），已证明了功能化刷状聚合物（BBP）的α-特异性（99%）和ω-特异性（90%）合成。通过DSC热重曲线测量的所得BBP中的热性能受α/ω选择性影响；所得含3T的α-BBP在111.2℃具有熔点，而相应的ω-BBP是无定形的。由于通过官能团在聚合物间/聚合物内相互作用程度不同，还证明了α/ω-BBP（含3T、Pyr）在发射性能方面的差异。
