Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater
A novel strategy by combination of surface-initiated atom transfer radical polymerization (ATRP) and in situ chemical oxidative graft polymerization was employed to tether stainless steel (SS) with poly(4-vinylaniline)-polyaniline (PVAn-PANI) bilayer coatings for mitigating biocorrosion by sulfate-r...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/101079 http://hdl.handle.net/10220/16769 |
| _version_ | 1826129949151461376 |
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| author | Yuan, Shaojun Tang, Shengwei Lv, Li Liang, Bin Choong, Cleo Swee Neo Pehkonen, Simo Olavi |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Yuan, Shaojun Tang, Shengwei Lv, Li Liang, Bin Choong, Cleo Swee Neo Pehkonen, Simo Olavi |
| author_sort | Yuan, Shaojun |
| collection | NTU |
| description | A novel strategy by combination of surface-initiated atom transfer radical polymerization (ATRP) and in situ chemical oxidative graft polymerization was employed to tether stainless steel (SS) with poly(4-vinylaniline)-polyaniline (PVAn-PANI) bilayer coatings for mitigating biocorrosion by sulfate-reducing bacteria (SRB) in seawater. A trichlorosilane coupling agent was first immobilized on the SS surfaces to provide sulfonyl halide groups for surface-initiated ATRP of 4-VAn. A subsequent grafting of PANI onto the PVAn-grafted surface was accomplished by in situ chemical oxidative graft polymerization of aniline. The PVAn-PANI bilayer coatings were finally quaternized by hexylbromide to generate biocidal functionality. The so-synthesized SS surface was found to significantly reduce bacterial adhesion and biofilm formation. Electrochemical results revealed that the PVAn-PANI modified SS surface exhibited high resistance to biocorrosion by SRB. With the inherent anticorrosion capability and antibacterial properties of quaternized PVAn-PANI bilayers, the functionalized SS substrates are potentially useful to steel-based equipment under harsh marine environments. |
| first_indexed | 2024-10-01T07:48:53Z |
| format | Journal Article |
| id | ntu-10356/101079 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:48:53Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1010792020-06-01T10:21:17Z Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater Yuan, Shaojun Tang, Shengwei Lv, Li Liang, Bin Choong, Cleo Swee Neo Pehkonen, Simo Olavi School of Materials Science & Engineering DRNTU::Engineering::Materials A novel strategy by combination of surface-initiated atom transfer radical polymerization (ATRP) and in situ chemical oxidative graft polymerization was employed to tether stainless steel (SS) with poly(4-vinylaniline)-polyaniline (PVAn-PANI) bilayer coatings for mitigating biocorrosion by sulfate-reducing bacteria (SRB) in seawater. A trichlorosilane coupling agent was first immobilized on the SS surfaces to provide sulfonyl halide groups for surface-initiated ATRP of 4-VAn. A subsequent grafting of PANI onto the PVAn-grafted surface was accomplished by in situ chemical oxidative graft polymerization of aniline. The PVAn-PANI bilayer coatings were finally quaternized by hexylbromide to generate biocidal functionality. The so-synthesized SS surface was found to significantly reduce bacterial adhesion and biofilm formation. Electrochemical results revealed that the PVAn-PANI modified SS surface exhibited high resistance to biocorrosion by SRB. With the inherent anticorrosion capability and antibacterial properties of quaternized PVAn-PANI bilayers, the functionalized SS substrates are potentially useful to steel-based equipment under harsh marine environments. 2013-10-24T06:30:41Z 2019-12-06T20:33:09Z 2013-10-24T06:30:41Z 2019-12-06T20:33:09Z 2012 2012 Journal Article Yuan, S., Tang, S., Lv, L., Liang, B., Choong, C. S. N., & Pehkonen, S. O. (2012). Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater. Industrial & engineering chemistry research, 51(45), 14738-14751. 0888-5885 https://hdl.handle.net/10356/101079 http://hdl.handle.net/10220/16769 10.1021/ie302303x en Industrial & engineering chemistry research |
| spellingShingle | DRNTU::Engineering::Materials Yuan, Shaojun Tang, Shengwei Lv, Li Liang, Bin Choong, Cleo Swee Neo Pehkonen, Simo Olavi Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater |
| title | Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater |
| title_full | Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater |
| title_fullStr | Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater |
| title_full_unstemmed | Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater |
| title_short | Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater |
| title_sort | poly 4 vinylaniline polyaniline bilayer modified stainless steels for the mitigation of biocorrosion by sulfate reducing bacteria srb in seawater |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/101079 http://hdl.handle.net/10220/16769 |
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