Kinetic study of acrylamide radical polymerization initiated by the horseradish peroxidase-mediated system
writer：Cai Zhi-Qi,Wang Weicheng,Ruan Gang,Wen Xiufang
keywords：OXIDASE REACTION, MECHANISM
source：期刊
specific source：INTERNATIONAL JOURNAL OF CHEMICAL KINETICS卷: 44 期: 7 頁: 475-481 DOI: 10.1002/kin.20611
Issue time：2012年
The polymerization kinetics of acrylamide (AAM) in water initiated by a ternary enzymatic system of horseradish peroxidase (HRP)/H2O2/acetylacetone (ACAC) was investigated. Conversiontime plots were obtained by dilatometry under different conditions of reaction temperatures and initial concentrations of HRP, ACAC, H2O2, and AAM. The results showed that the effect of the initial concentration of ACAC on the inhibition period was significant. The inhibition period decreases with increasing the initial concentration of ACAC. The inhibition period can be even eliminated by the use of a comparatively large amount of ACAC. From the conversiontime plots, the polymerization rate equation was obtained. Some kinetic features were explained on the basis of analysis of the reaction mechanism.