Aniline Copolymer via Electrochemical Synthesis and Its Catalyst Immobilization

• Main Authors: Chien-Hsin Yang, 楊乾信
• Other Authors: Ten-Chin Wen
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/71144045244973414625

博士 === 國立成功大學 === 化學工程研究所 === 82 === Copolymerization of aniline (AN) and para-phenylenediamine ( PPDA) was electrochemically performed by cyclic voltammetryon Ir O2-coated titanium electrodes in 0.5M H2SO4 .The mass of polymer deposited on an IrO2-coated titanium electrode is correlated wi- th the polymer anodic peak current,which allows the rates of po- lymer deposition to be monitored by increases in the anodic peak current at various PPDA concentrations.SEM photographs show that the morphology of the polymer film depends dramatically on PPDA concentration.The copolymerization rate of 2,5-diaminobenzenesul fonic acid (DABSA) and aniline (AN) in 1M HCl is strongly depen- dent upon the amount of DABSA in the comonomer feed . The compo- sitions of the copolymeric films were determined by X-ray photo- electron spectroscopy (XPS) and found to be controlled by chang- ing comonomer feed ratios. The copolymer compositions can be ex- pressed in terms of comonomer feed ratios by a simple copolymer model ; showing that the reactivity ratio of aniline increases with increasing the amount of 2,5-diaminobenzenesulfonic acid in the comonomer feed.The composite film of DABSA-AN copolymer with water-borne polyurethane was prepared and its conductivity was measured for comparing the effect of DABSA in the comonomer feed .(the following is omitted)