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New strategy for synthesis of hydroxyl-terminated poly(3-hexylthiophene) and its block copolymer using an η³-π-allyl hydroxyl-functionalized Ni(i) initiator.

ABSTRACT: A novel hydroxyl-terminated π-allyl nickel initiator [η³-Ni(CH₂CHCHCH₂OCOCH₃)][BPh^F ₄] is synthesized for the first time. ¹H-NMR analysis confirms that the Ni initiator possesses a typical π-allyl structure with a protected hydroxyl group. The Ni initiator is applied to synthesize hydroxyl-terminated poly(3-hexylthiophene). It successfully initiates the homopolymerization of thiophene, and yields narrow molecular weight distribution, hydroxyl-terminated poly(3-hexylthiophene). Moreover, it is found that [η³-Ni(CH₂CHCHCH₂OCOCH₃)][BPh^F ₄] has high initiating activity in the polymerization of styrene and butadiene. A hydroxyl-terminated polybutadiene-b-poly(3-hexylthiophene) block copolymer is synthesized by using [η³-Ni(CH₂CHCHCH₂OCOCH₃)][BPh^F ₄] to improve the workability and brittleness of poly(3-hexylthiophene).

SUBMITTER: Min X

PROVIDER: S-EPMC9057512 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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New strategy for synthesis of hydroxyl-terminated poly(3-hexylthiophene) and its block copolymer using an η3-π-allyl hydroxyl-functionalized Ni(i) initiator.

Min Xin X Zhan Changchao C Yan Ping P Ye Zhigang Z

RSC advances 20201001 65

A novel hydroxyl-terminated π-allyl nickel initiator [η3-Ni(CH2CHCHCH2OCOCH3)][BPhF 4] is synthesized for the first time. 1H-NMR analysis confirms that the Ni initiator possesses a typical π-allyl structure with a protected hydroxyl group. The Ni initiator is applied to synthesize hydroxyl-terminated poly(3-hexylthiophene). It successfully initiates the homopolymerization of thiophene, and yields narrow molecular weight ...[more]

PMID: 35515373

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