Oligopeptide-Modified Hydrophobic and Hydrophilic Polymers as Antifouling Coatings. Issue 1 (24th May 2017)

• Record Type: Journal Article
• Authors: Calabrese, David R.; Wenning, Brandon M.; Buss, Hilda; Finlay, John A.; Clare, Anthony S.; Fischer, Daniel; Segalman, Rachel A.; Ober, Christopher K.
• Is Part Of: Green materials. Volume 5:Issue 1(2017)
• Page Start: 1
• Page End: 42
• Publication Date: 2017-05-24
• Subjects: Biodegradable plastics -- Periodicals; Building materials -- Environmental aspects -- Periodicals; Polymers -- Environmental aspects -- Periodicals; 620.192
• DOI: 10.1680/jgrma.17.00006
• Languages: English
• ISSNs: 2049-1220

Abstract

Abstract : Amphiphilic block copolymers have been extensively studied for their antifouling and fouling-release properties.Herein we report amphiphilic polymers based on two triblock copolymers with opposite polarity backbones: PS- b -P(DMS- stat -MVS)- b -PS, which contains a hydrophobic middle block and PS- b -P(EO- stat -AGE)- b -PS which contains a hydrophilic middle block.These two triblock copolymers were modified with two different non-natural oligopeptide segments; one non-fluorinated and one fluorinated.These oligopeptides were attached to the triblock copolymers using thiol-ene 'click' chemistry. The odified polymers were coated onto treated glass slides, and the surfaces were characterized using contact angle measurements.NEXAFS studies were used to show the delivery of oligopeptide segments to the film surface, even in cases when those surface groups were in competition with PMDS blocks.The coatings were tested for antifouling and fouling release properties against sporelings of the green alga Ulva linza and cells of the diatom Navicula incerta .The modified PS- b -P(DMS- stat -MVS)- b -PS coatings performed well against the U. linza sporelings, and the PS- b -P(EO- stat -AGE)- b -PS coating performed well against both biofoulers.