Accelerated photodegradation of poly(vinyl chloride)
| Autor: | Ayako Torikai, Hirose Hasegawa |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
genetic structures
Polymers and Plastics Condensed Matter Physics Photochemistry Vinyl chloride Gel permeation chromatography chemistry.chemical_compound Wavelength Polyvinyl chloride chemistry Mechanics of Materials Materials Chemistry Degradation (geology) Organic chemistry sense organs Irradiation Photodegradation Absorption (electromagnetic radiation) |
| Zdroj: | Polymer Degradation and Stability. 63:441-445 |
| ISSN: | 0141-3910 |
| DOI: | 10.1016/s0141-3910(98)00125-6 |
| Popis: | This study aimed to find a method for the degradation of waste plastic materials under terrestrial sunlight. Poly(vinyl chloride) (PVC) pre-irradiated with shorter wavelength radiation was irradiated with radiation of longer wavelengths, longer than 290 nm, and the effect of wavelength on the degradation of PVC was investigated by using optical absorption and gel permeation chromatography (GPC). It was found that both the main-chain scission of PVC and degradation product formation were accelerated under the longer wavelength radiation (simulating terrestrial sunlight) by pre-irradiation. These reactions were dependent on the pre-irradiation time. The experimental results show the accelerated photodegradation of PVC under the terrestrial sunlight is possible by pre-irradiation with shorter wavelength radiation. |
| Databáze: | OpenAIRE |
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