Tough amphiphilic antifouling coating based on acrylamide, fluoromethacrylate and non-isocyanate urethane dimethacrylate crosslinker

This study is focused on the development of tougher gels using combinations of acrylamide, fluoromethacrylate and a non-isocyanate urethane dimethacrylate (NIUDMA) crosslinker. The NIUDMA was tailored with 2, 3-epoxypropoxy propyl-polydimethylsiloxane segments E9 (MW = 0.36 kg mol −1 ), E11 (MW = 0....

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Bibliographic Details
Published in:Biofouling (Chur, Switzerland) Switzerland), 2021-01, Vol.37 (1), p.36-48
Main Authors: Vignesh, Vishal, Nguyen, Thi Hoang Ha, Vanderwal, Lyndsi, Stafslien, Shane, Brennan, Anthony
Format: Article
Language:English
Subjects:
Acrylamide
amphiphilic
Antifouling
Antifouling coatings
Antifouling substances
Bio-assays
Biofilms
Copolymers
Crosslinking
Ethyl carbamate
Flavobacteriaceae
Gels
Isocyanates
Mechanical properties
Methacrylates
Modulus of elasticity
Navicula incerta
non-isocyanate
Polydimethylsiloxane
Polyurethanes
Reduction
Taguchi
Taguchi methods
Toughness
Water treatment
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Summary:This study is focused on the development of tougher gels using combinations of acrylamide, fluoromethacrylate and a non-isocyanate urethane dimethacrylate (NIUDMA) crosslinker. The NIUDMA was tailored with 2, 3-epoxypropoxy propyl-polydimethylsiloxane segments E9 (MW = 0.36 kg mol −1 ), E11 (MW = 0.5-0.6 kg mol −1 ) and E12 (MW = 1-1.4 kg mol −1 ). A 3 level Taguchi design was used to evaluate the role of each component of the ternary copolymer gel on the elastic modulus and toughness. The toughness ranged from 2.5-7 MJ m −3 whereas the modulus ranged from 27-70 MPa. The formulations with the highest toughness and modulus were screened for their antifouling potential in biological assays against the microalga Navicula incerta and the bacterium Cellulophaga lytica. The E9 gels showed the best performance, achieving a 73% reduction in N. incerta cells and a 92% reduction in C. lytica biofilm remaining after water jetting treatments, when compared with the commercial Intersleek product IS700.
ISSN:0892-7014
1029-2454
DOI:10.1080/08927014.2020.1870110