Marine anti-biofouling efficacy of amphiphilic poly(coacrylate) grafted PDMSe: effect of graft molecular weight
Marine anti-biofouling efficacy of amphiphilic poly(coacrylate) grafted PDMSe: effect of graft molecular weight
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DOI：
10.1080/08927014.2017.1288807
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发表时间：
2017-01-01
期刊：
影响因子：
2.7
通讯作者：
Brennan, Anthony B.
中科院分区：
文献类型：
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作者：
Kuliasha, Cary A.;Finlay, John A.;Brennan, Anthony B.
由于生态问题，目前存在强烈的动机来开发环境友好、耐用和稳定的用于海运业的有效抗生物污损涂料。以绿色石莼（Ulva linza）和硅藻舟形藻（Navicula incerta）的游动孢子为实验材料，研究了由52%丙烯酰胺、34%丙烯酸和14%丙烯酸甲酯接枝到聚二甲基硅氧烷（PDMSe）表面的两亲性荷电共聚物的去污（AF）和去污（FR）效果。分析了生物污垢对分子量变化的反应，范围从100到1,400 kg mol（-1）。与PDMSE对照相比，两亲性涂层显示出FR反应的显著改善，硅藻的去除百分比增加55%，AF功效增加，游动孢子的初始附着密度降低92%。然而，在测试范围内，移植物分子量在统计学上不显著。将共聚物接枝到用Sharklet（TM）微形貌压印的PDMSe上没有产生增强的AF功效。
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 similar to 52% acrylamide, similar to 34% acrylic acid, and similar to 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 similar to 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 (TM) microtopography did not produce enhanced AF efficacy.