Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 55, Issue 18, Pages 2865-2876Publisher
WILEY
DOI: 10.1002/pola.28621
Keywords
bottlebrush polymer; grafting-from; graft copolymer; reversible addition-fragmentation chain transfer (RAFT); surface-initiated polymerization; star polymers; Z-group approach; Z-RAFT
Categories
Funding
- Army Research Office [W911NF-14-1-0322]
- American Chemical Society Petroleum Research Fund [54884-DNI7]
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The synthesis of graft polymers via controlled polymerization techniques has enabled the facile modification of the surface properties of a variety of substrates. Three grafting methods are typically highlighted in the literature: grafting-to, grafting-from, and grafting-through. However, a fourth method exists when grafting is conducted using reversible addition-fragmentation chain transfer (RAFT) polymerization, which we refer to as transfer-to. Transfer-to differs from the other grafting strategies in the types of structural defects and impurities that arise during polymerization. This review addresses important considerations when conducting RAFT transfer-to, including RAFT chain transfer agent selection, monomer structure, and reaction conditions. In addition, we highlight key mechanistic differences between grafting-from and transfer-to and their effects on the structure and sample composition of the resulting graft polymers. (C) 2017 Wiley Periodicals, Inc.
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