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Silicificated polymer arrays based on a strong adhesive polymer for antifouling coatings
Author(s) -
Du Mengmeng,
Jin Qiaoqiao,
Chai Mengsha,
Ji Peijun
Publication year - 2017
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5325
Subject(s) - polyaniline , materials science , nanofiber , polymer , biofouling , adhesive , polymerization , adhesion , polymer chemistry , substrate (aquarium) , condensation polymer , chemical engineering , aniline , polyaniline nanofibers , chemistry , layer (electronics) , composite material , organic chemistry , membrane , biochemistry , oceanography , engineering , geology
We report a novel approach for the preparation of multilayer polymers for protein and bacterial antifouling. Stainless steel ( SS ) was used as the model substrate. SS was first coated with a hybrid polymer film, which was formed by simultaneous hydrolytic polycondensation of 3‐aminopropyltriethoxysilane and polymerization of dopamine ( HPAPD ). Then p ‐phenylenediamine was chemically bound to SS–HPAPD . The amino groups of p ‐phenylenediamine were used as anchors for the growth of polyaniline nanofiber arrays by polymerization of aniline in situ . The nanofibers were further silicificated using 3‐aminopropyltriethoxysilane, 3‐mercaptopropyltriethoxysilane, vinyltrimethoxysilane and octyltrimethoxysilane, conferring various functional groups. The silicificated polyaniline nanofiber arrays ( SPNAs ) become hydrophobic. Separate tests for the adsorption of proteins of small (54 kDa ) and large (2 × 90 kDa ) molecular weights and Escherichia coli on the SPNAs were performed. The results show that the SPNAs can resist the adhesion of the proteins with an average efficiency of 96.3 ± 3.2%, and the SPNAs can resist the adhesion and colonization of Escherichia coli with an average efficiency of 97.5 ± 3.8%. The methodology of forming SPNAs on SS is of general utility and has wide application potential. © 2017 Society of Chemical Industry