Marine anti-biofouling efficacy of amphiphilic poly(coacrylate) grafted PDMSe:: effect of graft molecular weight

Cary A. Kuliasha; John A. Finlay; Sofia C Franco; Anthony S. Clare; Shane J. Stafslien; Anthony B. Brennan

doi:10.1080/08927014.2017.1288807

Marine anti-biofouling efficacy of amphiphilic poly(coacrylate) grafted PDMSe: effect of graft molecular weight

Cary A. Kuliasha, John A. Finlay, Sofia C Franco, Anthony S. Clare, Shane J. Stafslien, Anthony B. Brennan

Aquaculture Research Network

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

There is currently strong motivation due to ecological concerns to develop effective anti-biofouling coatings that are environmentally benign, durable, and stable for use by the maritime industry. The antifouling (AF) and fouling-release (FR) efficacy of amphiphilic, charged copolymers composed of ~52% acrylamide, ~34% acrylic acid, and ~14% methyl acrylate grafted to poly(dimethyl siloxane) (PDMSe) surfaces were tested against zoospores of the green alga Ulva linza and the diatom Navicula incerta. The biofouling response to molecular weight variation was analyzed for grafts ranging from ~100 to 1,400 kg mol⁻¹, The amphiphilic coatings showed a marked improvement in the FR response, with a 55% increase in the percentage removal of diatoms and increased AF efficacy, with 92% reduction in initial attachment density of zoospores, compared to PDMSe controls. However, graft molecular weight, in the range tested, was statistically insignificant. Grafting copolymers to PDMSe embossed with the Sharklet™ microtopography did not produce enhanced AF efficacy.

Original language	English
Pages (from-to)	252-267
Number of pages	16
Journal	Biofouling
Volume	33
Issue number	3
Early online date	20 Feb 2017
DOIs	https://doi.org/10.1080/08927014.2017.1288807
Publication status	Published - 16 Mar 2017

Keywords

amphiphilic poly(co-acrylate)
anti-biofouling
engineered microtopography
Grafting
molecular weight
poly(dimethyl siloxane)

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10.1080/08927014.2017.1288807

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title = "Marine anti-biofouling efficacy of amphiphilic poly(coacrylate) grafted PDMSe:: effect of graft molecular weight",

abstract = "There is currently strong motivation due to ecological concerns to develop effective anti-biofouling coatings that are environmentally benign, durable, and stable for use by the maritime industry. The antifouling (AF) and fouling-release (FR) efficacy of amphiphilic, charged copolymers composed of ~52% acrylamide, ~34% acrylic acid, and ~14% methyl acrylate grafted to poly(dimethyl siloxane) (PDMSe) surfaces were tested against zoospores of the green alga Ulva linza and the diatom Navicula incerta. The biofouling response to molecular weight variation was analyzed for grafts ranging from ~100 to 1,400 kg mol−1, The amphiphilic coatings showed a marked improvement in the FR response, with a 55% increase in the percentage removal of diatoms and increased AF efficacy, with 92% reduction in initial attachment density of zoospores, compared to PDMSe controls. However, graft molecular weight, in the range tested, was statistically insignificant. Grafting copolymers to PDMSe embossed with the Sharklet{\texttrademark} microtopography did not produce enhanced AF efficacy.",

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author = "Kuliasha, {Cary A.} and Finlay, {John A.} and Franco, {Sofia C} and Clare, {Anthony S.} and Stafslien, {Shane J.} and Brennan, {Anthony B.}",

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AU - Kuliasha, Cary A.

AU - Finlay, John A.

AU - Franco, Sofia C

AU - Clare, Anthony S.

AU - Stafslien, Shane J.

AU - Brennan, Anthony B.

PY - 2017/3/16

Y1 - 2017/3/16

N2 - There is currently strong motivation due to ecological concerns to develop effective anti-biofouling coatings that are environmentally benign, durable, and stable for use by the maritime industry. The antifouling (AF) and fouling-release (FR) efficacy of amphiphilic, charged copolymers composed of ~52% acrylamide, ~34% acrylic acid, and ~14% methyl acrylate grafted to poly(dimethyl siloxane) (PDMSe) surfaces were tested against zoospores of the green alga Ulva linza and the diatom Navicula incerta. The biofouling response to molecular weight variation was analyzed for grafts ranging from ~100 to 1,400 kg mol−1, The amphiphilic coatings showed a marked improvement in the FR response, with a 55% increase in the percentage removal of diatoms and increased AF efficacy, with 92% reduction in initial attachment density of zoospores, compared to PDMSe controls. However, graft molecular weight, in the range tested, was statistically insignificant. Grafting copolymers to PDMSe embossed with the Sharklet™ microtopography did not produce enhanced AF efficacy.

AB - There is currently strong motivation due to ecological concerns to develop effective anti-biofouling coatings that are environmentally benign, durable, and stable for use by the maritime industry. The antifouling (AF) and fouling-release (FR) efficacy of amphiphilic, charged copolymers composed of ~52% acrylamide, ~34% acrylic acid, and ~14% methyl acrylate grafted to poly(dimethyl siloxane) (PDMSe) surfaces were tested against zoospores of the green alga Ulva linza and the diatom Navicula incerta. The biofouling response to molecular weight variation was analyzed for grafts ranging from ~100 to 1,400 kg mol−1, The amphiphilic coatings showed a marked improvement in the FR response, with a 55% increase in the percentage removal of diatoms and increased AF efficacy, with 92% reduction in initial attachment density of zoospores, compared to PDMSe controls. However, graft molecular weight, in the range tested, was statistically insignificant. Grafting copolymers to PDMSe embossed with the Sharklet™ microtopography did not produce enhanced AF efficacy.

KW - amphiphilic poly(co-acrylate)

KW - anti-biofouling

KW - engineered microtopography

KW - Grafting

KW - molecular weight

KW - poly(dimethyl siloxane)

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DO - 10.1080/08927014.2017.1288807

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SN - 0892-7014

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ER -

Marine anti-biofouling efficacy of amphiphilic poly(coacrylate) grafted PDMSe: effect of graft molecular weight

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Keywords

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