화학공학소재연구정보센터
Journal of Applied Polymer Science, Vol.52, No.11, 1549-1556, 1994
Micellar Effect on the Kinetics of Ceric Ion-Initiated Polymerization of Acrylonitrile in the Presence of Organic Substrate
The micellar effect on the kinetics of ceric ion-initiated polymerization of acrylonitrile (AN) in the presence of N-acetylglycine has been studied in the temperature range 30-50-degrees-C. The neutral emulsifier (Triton X-100) has no effect on the R(p), whereas both anionic (NaLS) and cationic (NCTAB) emulsifiers accelerate the rate of polymerization appreciably. Comparison of the effect of different organic substrates on the rate of polymerization has been made. Various effects such as the concentration of metal ion, surfactant, monomer, sulfuric acid, organic solvents, and inorganic salts on R(p) have also been investigated. The most remarkable feature of the investigation involves the enhancement of R(p) in the presence of micelles. A suitable mechanism for the derivation of the rate expression for the above system is proposed along with the calculation of activation energy and prediction of optimum conditions.