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Antifouling Coatings Based on Covalently Cross-Linked Agarose Film via Thermal Azide-Alkyne Cycloaddition

Antifouling Coatings Based on Covalently Cross-Linked Agarose Film via Thermal Azide-Alkyne Cycloaddition

Li Qun Xu, Dicky Pranantyo, Koon-Gee Neoh, En-Tang Kang, Serena Lay-Ming Teo, Guo Dong Fu

Colloids Surf B Biointerfaces. 2016 May 1;141:65-73.

PMID: 26836479

Abstract:

Coatings based on thin films of agarose-poly(ethylene glycol) (Agr-PEG) cross-linked systems are developed as environmentally-friendly and fouling-resistant marine coatings. The Agr-PEG cross-linked systems were prepared via thermal azide-alkyne cycloaddition (AAC) using azido-functionalized Agr (AgrAz) and activated alkynyl-containing poly(2-propiolamidoethyl methacrylate-co-poly(ethylene glycol)methyl ether methacrylate) P(PEMA-co-PEGMEMA) random copolymers as the precursors. The Agr-PEG cross-linked systems were further deposited onto a SS surface, pre-functionalized with an alkynyl-containing biomimetic anchor, dopamine propiolamide, to form a thin film after thermal treatment. The thin film-coated SS surfaces can effectively reduce the adhesion of marine algae and the settlement of barnacle cyprids. Upon covalent cross-linking, the covalently cross-linked Agr-PEG films coated SS surfaces exhibit good stability in flowing artificial seawater, and enhanced resistance to the settlement of barnacle cyprids, in comparison to that of the surfaces coated with physically cross-linked AgrAz films.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP89485610-A	Poly(ethylene glycol) methyl ether azide		89485-61-0	Price

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