Degradation of PVC: Effect of zinc chloride on the concentration of polyenes
| Autor: | S.M. Yousaf, Zahoor Ahmad, W. Manzoor |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Polymers and Plastics
Chemistry Stereochemistry Inorganic chemistry chemistry.chemical_element Concentration effect Zinc Conjugated system Condensed Matter Physics Polyene Charge-transfer complex chemistry.chemical_compound Polyvinyl chloride Mechanics of Materials Materials Chemistry Degradation (geology) Spectroscopy |
| Zdroj: | Polymer Degradation and Stability. 51:295-299 |
| ISSN: | 0141-3910 |
| DOI: | 10.1016/0141-3910(95)00186-7 |
| Popis: | The thermal degradation of Polyvinylchloride (PVC) and PVC in the presence of ZnCl 2 was studied using UV-visible spectroscopy. Formation of a charge transfer complex, H + ZnCl 3 − , with the conjugated chain was observed. The results are compared with the previous studies at low temperature. Time dependence of concentration of polyene sequences in the presence of different amounts of ZnCl 2 was also studied. A critical analysis of the measurement of polyene sequences and the effect of ZnCl 2 on their formation has been given. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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