Oxidative degradation processes in synthetic and biological polymers as studied by pulse radiolysis experiments
β Scribed by W. Schnabel
- Book ID
- 112676893
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 783 KB
- Volume
- 101
- Category
- Article
- ISSN
- 1588-2780
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π SIMILAR VOLUMES
Formation of cation radicals by pulse radiolysis of metalloporphyrins and chlorophyll a in 1,2dichIoroethane is reported. Demetalation of the metalloporphyrin by radiolytically produced HCl is also observed. Rate constants for demetalation of ZnTPP and Chl a are 1 .I X IO8 and = 3 X IO8 h!-' s-I\_ O
Embelin, 2,5-dihydroxy-3-undecyl-1,4-benzoquinone, has two intra-molecular hydrogen bonds between the quinone and hydroquinone groups present on the same ring. Therefore, it is expected to produce semiquinone radical in the oxidation as well reduction reactions. To investigate this aspect, kinetics