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Regioselective living polymerization of allylcyclohexane and precise synthesis of hydrocarbon block copolymers with cyclic units

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Abstract

Precise control over macromolecular structures is a central goal and remains a great challenge in synthetic polymer chemistry. We report herein the living isomerization polymerization of allycyclohexane (ACH) using α-diimine nickel catalysts with high regioselectivity. The influences of catalyst structure, cocatalyst, and temperature on ACH polymerization were studied in detail. The macromolecular structure of polyallycyclohexanes (PACHs) was precisely controlled by living polymerization in combination with high regioselectivity under optimized conditions. A mechanistic model involving the 2,1-insertion selectivity of ACH and chain walking was proposed. Well-defined polyallycyclohexane-b-poly(1-hexene) copolymers (PACH-b-PH) with cyclic units were synthesized by sequential monomer addition.

Graphical abstract: Regioselective living polymerization of allylcyclohexane and precise synthesis of hydrocarbon block copolymers with cyclic units

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Publication details

The article was received on 10 Jan 2018, accepted on 06 Feb 2018 and first published on 07 Feb 2018


Article type: Paper
DOI: 10.1039/C8PY00047F
Citation: Polym. Chem., 2018, Advance Article
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    Regioselective living polymerization of allylcyclohexane and precise synthesis of hydrocarbon block copolymers with cyclic units

    J. Gao, Z. Ying, L. Zhong, H. Liao, H. Gao and W. Qing, Polym. Chem., 2018, Advance Article , DOI: 10.1039/C8PY00047F

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