STUDIES ON THERMOKINETICS(XVI) THE KINETICS OF THE POLYMERIZATION OF ACRYLAMIDE IN MICELLAR SOLUTION
Titel:
STUDIES ON THERMOKINETICS(XVI) THE KINETICS OF THE POLYMERIZATION OF ACRYLAMIDE IN MICELLAR SOLUTION
Auteur:
Xiancheng, Zeng Qinghua, Liu Xiaonan, Chen Yu, Deng Ganzuo, Li Rui, Xia Dacheng, Sheng
Verschenen in:
Journal of dispersion science and technology
Paginering:
Jaargang 13 (1992) nr. 6 pagina's 657-667
Jaar:
1992-12-01
Inhoud:
The kinetics of the polymerization of acrylamide in aqueous solution and CTAB micellar solution initiated by sodium sulfite has been investigated with the theory and method of thermokinetics for n order reactions with equal concentration in this paper. The influence of initiator and CTAB concetrations on molecular weight of polyacrylamide has been discussed.The second—order rate constants of this reaction at 30 and 40°C in aqueous solution are 0. 112and 0. 0262dm3 mol-1s_1, respectively. The activation energy,based on measurements at these two temperatures,is 66. -4kJ mol-1. The ratio k2√n in CTAB micellar solution is smaller than that in aqueous solution. The rate of forming radical in micellar solution has been decreased.