Active radicals formed during the sonolysis of PVK (polyvinyl carbazole) and PMMA (polymethylmethacrylate) have been studied with the combination of spin thepping technique and ESR spectroscopy-The results show that: 1. For PVK
radicals CA and--CH2--CH--are produced during the ultrasonic irradiation and only the later can be trapped by MNP. 2. For PMMA
radicals --C and --CH2 are generated by sonolysis and both can be trapped by ND.
Abstract
Active radicals formed during the sonolysis of PVK (polyvinyl carbazole) and PMMA (polymethylmethacrylate) have been studied with the combination of spin thepping technique and ESR spectroscopy-The results show that: 1. For PVK
radicals CA and--CH2--CH--are produced during the ultrasonic irradiation and only the later can be trapped by MNP. 2. For PMMA
radicals --C and --CH2 are generated by sonolysis and both can be trapped by ND.
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