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Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater
นักวิจัย : Yuan, Shaojun , Tang, Shengwei , Lv, Li , Liang, Bin , Choong, Cleo Swee Neo , Pehkonen, Simo Olavi
คำค้น : DRNTU::Engineering::Materials.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : 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 , http://hdl.handle.net/10220/16769 , http://dx.doi.org/10.1021/ie302303x
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Industrial & engineering chemistry research
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

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.

บรรณานุกรม :
Yuan, Shaojun , Tang, Shengwei , Lv, Li , Liang, Bin , Choong, Cleo Swee Neo , Pehkonen, Simo Olavi . (2555). Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yuan, Shaojun , Tang, Shengwei , Lv, Li , Liang, Bin , Choong, Cleo Swee Neo , Pehkonen, Simo Olavi . 2555. "Poly(4-vinylaniline)-polyaniline bilayer-modified stainless steels for the mitigation of biocorrosion by sulfate-reducing bacteria (SRB) in seawater".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
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."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
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. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.