Degradation Behaviour of Hydrolyzed Polyacrylamide in Solution Induced by Autoxidation of Pyrogallol

作者：Xin H P; Yin S; Ao D; Wang X J; Li R Y; Zhang J; Tan Y B^*

来源：Asian Journal of Chemistry, 2014, 26(11): 3155-3160.

DOI：10.14233/ajchem.2014.15856

• Hydrolyzed polyacrylamide
• Pyrogallol
• Autoxidation
• Degradation

The degradation of hydrolyzed polyacrylamide in solution was studied using pyrogallol. This degradation could be induced without complicated treatments expect adding pyrogallol to hydrolyzed polyacrylamide solutions. Moreover, hydrolyzed polyacrylamide presented alkaline while progallol autoxidation could be effectively accelerated in alkaline environment. The decrease of apparent viscosity and weight-average molar mass as well as the aggregation radius of hydrolyzed polyacrylamide were evident in the degradation procedure. The mechanism of pyrogallol autoxidation was also investigated by UV-visible spectrum which indicated that superoxide radical generated in the pyrogallol autoxidation could attract the stone bones inducing the degradation of hydrolyzed polyacrylamide.

• 出版日期2014-6
• 单位山东大学