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    Mussel-Inspired Multiloop Polyethers for Antifouling Surfaces

    Year: 2021

    Journal: Biomacromolecules, Volume 22, DEC 13, page 5173–5184

    Authors: Park, Suebin; Kim, Minseong; Park, Jinwoo; Choi, Woojin; Hong, Jinkee; Lee, Dong Woog; Kim, Byeong-Su

    Organizations: Samsung Research Funding & Incubation Center of Samsung Electronics [SRFC-MA1602-07]; Yonsei University [2020-22-0494]

    Despite the widespread use of polymers for antifouling coatings, the effect of the polymeric topology on the antifouling property has been largely underexplored. Unlike conventional brush polymers, a loop conformation often leads to strong steric stabilization of surfaces and antifouling and lubricating behavior owing to the large excluded volume and reduced chain ends. Herein, we present highly antifouling multiloop polyethers functionalized with a mussel-inspired catechol moiety with varying loop dimensions. Specifically, a series of polyethers with varying catechol contents were synthesized via anionic ring-opening polymerization by using triethylene glycol glycidyl ether (TEG) and catechol-acetonide glycidyl ether (CAG) to afford poly(TEGco-CAG) n. The versatile adsorption and antifouling effects of multiloop polyethers were evaluated using atomic force microscopy and a quartz crystal microbalance with dissipation. Furthermore, the crucial role of the loop dimension in the antifouling properties was analyzed via a surface force apparatus and a cell attachment assay. This study provides a new platform for the development of versatile antifouling polymers with varying topologies.
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