Poly(ethylene glycol)-Based Thiol-ene Hydrogel Coatings-Curing Chemistry, Aqueous Stability, and Potential Marine Antifouling Applications
2010 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 2, no 3, 903-912 p.Article in journal (Refereed) Published
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. Moth acrylate-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.
Place, publisher, year, edition, pages
American Chemical Society (ACS), 2010. Vol. 2, no 3, 903-912 p.
thiol-ene chemistry, photocuring, hydrogels, degradation, antifouling, bioassays, click chemistry, terminal alkynes, efficient, networks, surfaces, photopolymerization, future, azides
IdentifiersURN: urn:nbn:se:kth:diva-19329DOI: 10.1021/am900875gISI: 000275825700045PubMedID: 20356297ScopusID: 2-s2.0-77952295264OAI: oai:DiVA.org:kth-19329DiVA: diva2:337376
QC 201005252010-08-052010-08-052016-07-21Bibliographically approved