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Unformatted text preview: ion strength compare to the original EVA foams. POLY-O18 CORROSION INHIBITION OF MILD STEEL WITH THE EXPLOITATION OF POLYANILINE STABILIZED BY NCETYL-N,N,N TRIMETHYL AMMONIUM BROMIDE Mohammad Rashid, *Afidah Abdul Rahim and Mohd Jain Noordin School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: [email protected] In this article, we studied the corrosion efficiency of polyaniline, prepared by N -Cetyl-N,N,N trimethyl ammonium bromide (CTAB) surfactant-based polymer using electrochemical polymerization technique. The anti-corrosion studies of polyaniline nanofilm deposited on mild steel exposed to acidic medium were performed by potentiodynamic polarization, polarization resistance and electrochemical impedance spectroscopy and compared with the performance of aniline monomer. It has been found that surfactant-stabilized polyaniline nanofilm deposited on the mild steel has manifested the higher corrosion inhibition efficiency than the monomer, whereas the monomer accelerated the rate of corrosion. The structural characterization of polyaniline was studied by FTIR and UV -vis spectroscopy. -1 The FTIR spectrum of the polymer showed the major absorption peak at 1576 cm is attributed to -1 nitrogen-quinoid (Q) ring structure and peak observed at 1495 cm corresponds to benzenoid(B) -1 structure. The C-N stretching band of amine appears at 1373 and 1297 cm for quinoid-benzenoid-1 quinoid and benzenoid-quinoid-benzenoid, respectively. The characteristic band at 818 cm is observed -1 as a single band in polyaniline. A broad and weak peak at 3200 cm is assigned to the free N-H stretching. In UV-vis spectrum, it showed the characteristic absorption peaks at 325 nm and 603 nm assigned to π- π* transition in the benzenoid ring and the donor -acceptor interaction of quinoid ring, respectively. 227 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia POLY-O19 THE POTENTIAL OF ACRYLATED UV CURABLE EPOXIDIZED NATURAL OIL AS NEW SUSTAINABLE EPOXY Munirah Onn, Ahmad Faiza Mohd and Rahmah Mohammed Polymer Technology Programme, University Technology Mara, Shah Alam, 40450 Selangor, Malaysia E-mail: [email protected]..
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.
- Spring '11