STUDIES ON THERMOKINETICS(XVI) THE KINETICS OF THE POLYMERIZATION OF ACRYLAMIDE IN MICELLAR SOLUTION

ZENG XIANCHENG Chemistry Department, Sichuan University, Chengdu, 61006-1, (P. R. China )

LIU QINGHUA Chemistry Department, Sichuan University, Chengdu, 61006-1, (P. R. China )

CHEN XIAONAN Chemistry Department, Sichuan University, Chengdu, 61006-1, (P. R. China )

DENG YU Chemistry Department, Sichuan University, Chengdu, 61006-1, (P. R. China )

LI GANZUO Chemistry Department, Shandong University, Jinan, 250100, (P. R. China)

XIA RUI Chemistry Department, Shandong University, Jinan, 250100, (P. R. China)

SHENG DACHENG Chemistry Department, Shandong University, Jinan, 250100, (P. R. China)

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ABSTRACT

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.

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STUDIES ON THERMOKINETICS(XVI) THE KINETICS OF THE POLYMERIZATION OF ACRYLAMIDE IN MICELLAR SOLUTION

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STUDIES ON THERMOKINETICS(XVI) THE KINETICS OF THE POLYMERIZATION OF ACRYLAMIDE IN MICELLAR SOLUTION

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