Title
Poly(ethylene glycol)-based thiol-ene hydrogel coatings: Curing chemistry, aqueous stability, and potential marine antifouling applications
Author
Lundberg, P.
Bruin, A.
Klijnstra, J.W.
Nyström, A.M.
Johansson, M.
Malkoch, M.
Hult, A.
Publication year
2010
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
Subject
Mechatronics, Mechanics & Materials
MPC - Maritime Materials Performance Centre
TS - Technical Sciences
High Tech Systems & Materials
Materials
Industrial Innovation
thiol-ene chemistry
photocuring
hydrogels
degradation
antifouling
bioassays
To reference this document use:
http://resolver.tudelft.nl/uuid:43f4c8a8-48d7-4efe-bf6b-87b478e9ffe4
TNO identifier
464095
Source
ACS Applied Materials and Interfaces, 2 (3), 903-912
Bibliographical note
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 Swedish Medical Nanoscience Center, Department of Neuroscience, Karolinska Insitutet, Retzius väg 8, S-171 77 Stockholm, Sweden
Document type
article