The analyses showed both lignins had different

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Unformatted text preview: resins were synthesized by replacing phenol with 30, 40 and 50 % (w/w) kraft lignin. The LPF resins were characterized and compared with commercial phenol formaldehyde (PF) through pH value, gel tim e, viscosity, FTIR spectroscopy, TGA, DSC, molecular weight and contact angles. LPF resins were applied to 2 bond the rubber wood plywood with spread level 250 g/m . The plywood was tested for physical properties and shear strength. From all the results, it showed that kraft lignin has tremendous potential to replace phenol in phenol formaldehyde resin production. MAT-O20 CORRELATION BETWEEN PHENOLIC CONTENT AND CORROSION INHIBITORS OF UNCARIA GAMBIR EXTRACT FOR MILD STEEL IN ACIDIC SOLUTION Nur Hazwani Dahon and *Mohd Jain Kassim School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: mjain@usm.my The extraction of Uncaria gambir in different polarity solvents was successfully done. It was found that the extraction of Uncaria gambir in ethyl acetate solution gives the highest phenolic content, whereas the lowest was in water extraction. The corrosion inhibition activity was determined by means of weight loss, potentiodynamic polarization and electrochemical impeda nce spectroscopy. Potentiodynamic polarization study clearly reveals that the gambir extract behaves as a mixed inhibitor. The inhibition efficiencies, IE increases by increasing the concentration and reach 68.44 % at 100 ppm for the ethyl acetate extract. The results also indicated that the IE was increased with the increment of phenolic content in the various extract. 152 3rd ICYC 2010 Universiti Sains Malaysia MAT-O21 23rd-25th June 2010 SYNTHESIS AND THERMOPHYSICAL PROPERTIES OF TRIOCTYLTETRADECYLPHOSPHONIUM -BASED ROOM TEMPERATURE IONIC LIQUIDS 1 Abobakr Khidir Ziyada, Cecilia Devi Wilfred and Mohd Azmi Bustam 2 1 2 Chemical Engineering Department, Universiti Teknologi PETRONAS, Tronoh 31750, Perak Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Tronoh-31750, Perak, Malaysia...
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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.

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