Poly(ethylene glycol)-Based Thiol-ene Hydrogel Coatings−Curing Chemistry, Aqueous Stability, and Potential Marine Antifouling Applications
Source abstract
Abstract
Photocured thiol-ene hydrogel coatings based on poly(ethylene glycol) (PEG) were investigated for marine antifouling purposes. By varying the PEG length, vinylic end-group, and thiol cross-linker, a library of hydrogel coatings with different structural composition was efficiently accomplished, with or without ester linkages. The thiol-methacrylate and thiol-allyl systems were evaluated with respect to curing, degradation, as well as antifouling properties. Methacrylate-based systems exhibited homopolymerization, whereas allyl-based systems reacted more selectively through thiol-ene couplings reaction. The ester-free hydrogels elucidated higher hydrolytic stability whereas longer PEG chains accelerated the degradation process. The antifouling properties were evaluated by protein adsorption with Bovine serum albumin (BSA) and bioassays with the marine bacteria, Cobetia marina, and the marine diatom, Amphora coffeaeformis; in all tests, longer PEG lengths improved the antifouling properties.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Marine Biology and Environmental Chemistry · Microplastics and Plastic Pollution · Polymer Surface Interaction Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
KTH Fibre and Polymer Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden, TNO Science and Industry, Bevesierweg (Harssens), P.O. Box 505, 1780 AM Den Helder, The Netherlands, and Swedish Medical Nanoscience Center, Department of Neuroscience, Karolinska Insitutet, Retzius väg 8, S-171 77 Stockholm, Sweden
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