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Issue 10, 2017
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Factors affecting bottlebrush polymer synthesis by the transfer-to method using reversible addition–fragmentation chain transfer (RAFT) polymerization

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Abstract

The transfer-to method is a unique way to prepare bottlebrush polymers by reversible addition–fragmentation chain transfer (RAFT) polymerization. This little-studied bottlebrush polymer synthesis strategy is distinct from the grafting-from, grafting-to, and grafting-through strategies and therefore may have specific advantages over these other synthetic approaches. Herein, we study the factors affecting the composition of bottlebrush polymer samples prepared by RAFT transfer-to, with particular emphasis on bottlebrush polymer molecular weight (MW) and dispersity (Đ) and the percentage of “dead” linear polymer as a function of initiator concentration, [M]/[CTA] ratio, backbone length, and monomer type. The lowest quantities of dead polymer were obtained under conditions that limited the MW of the bottlebrush polymer side-chains and that discouraged termination reactions. Under optimized conditions, high MW bottlebrush polymers were prepared with low dispersities and few dead polymer impurities.

Graphical abstract: Factors affecting bottlebrush polymer synthesis by the transfer-to method using reversible addition–fragmentation chain transfer (RAFT) polymerization

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Publication details

The article was received on 12 Nov 2016, accepted on 03 Feb 2017 and first published on 06 Feb 2017


Article type: Paper
DOI: 10.1039/C6PY01982J
Citation: Polym. Chem., 2017,8, 1636-1643
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    Factors affecting bottlebrush polymer synthesis by the transfer-to method using reversible addition–fragmentation chain transfer (RAFT) polymerization

    S. C. Radzinski, J. C. Foster, S. E. Lewis, E. V. French and J. B. Matson, Polym. Chem., 2017, 8, 1636
    DOI: 10.1039/C6PY01982J

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