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Cis-1,4-specific isoprene polymerization and isoprene-styrene copolymerization using nickel dichloride complexes with mono- or bidentate benzimidazole ligands
https://repo.qst.go.jp/records/2002955
https://repo.qst.go.jp/records/2002955edb47b3d-f896-42b0-ae8a-7e63791874ba
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||||||||||
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| 公開日 | 2026-03-09 | |||||||||||||||||||||||||||||
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| タイトル | Cis-1,4-specific isoprene polymerization and isoprene-styrene copolymerization using nickel dichloride complexes with mono- or bidentate benzimidazole ligands | |||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||||||||||
| 著者 |
Kei Nishii
× Kei Nishii
× Masahito Hasumi
× Kohei Uyama
× Yusho Takashima
× Kakeru Tsukahara
× Shota Miyata
× Seira Tanigawa
× Takehito Kato
× Ueda Yasuyuki
× Tatsunari Murakami
× Shun Ohta
× Tomoyuki Toda
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| 抄録 | ||||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||||
| 内容記述 | In the presence of Al(C8H17)3 and [Ph3C][B(C6F5)4], 2-methylbenzimidazole- or phenylbis(benzimidazol-2-yl)methane-ligated nickel dichloride complexes 1 and 2, the former of which was newly synthesized in this study, were found to catalyze the homopolymerization of isoprene (Ip) and styrene (St), respectively. The stereospecificities of the produced polymers (cis-1,4-polyIp; 1: 97%, 2: 95%; isotactic (mm)-enriched-polySt; 1: 42%, 2: 45%) depend on the structures of the complexes. The 1- or 2-catalyzed copolymerization reactions of Ip with St were also investigated. The reactivity ratios between Ip and St were determined from the Fineman–Ross plots (1: rIp = 0.81, rSt = 2.04; 2: rIp = 2.07, rSt = 2.35). These results suggest that complex 1 produces predominantly random copolymers, whereas complex 2 tends to multiblock-like structures of the resultant copolymers. | |||||||||||||||||||||||||||||
| 書誌情報 |
Chemistry Letters 巻 55, 号 1, 発行日 2026-03 |
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| 識別子タイプ | DOI | |||||||||||||||||||||||||||||
| 関連識別子 | 10.1093/chemle/upaf231 | |||||||||||||||||||||||||||||
