| Titre : |
Photodegradation of polymers, relevance for a coating chemist - Part II |
| Type de document : |
texte imprimé |
| Auteurs : |
Gurpreet Onkar Singh, Auteur ; Vinod C. Malshe, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
p. 81-96 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Photodétérioration
Polymères -- Détérioration
Polystyrène
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Note de contenu : |
- Influence of morphology
- Combination of photo and biodegradation
- Practical of photodegradable polymers
- Fig. 13 : The variation of absorbance of carbonyl band with the exposure time for various
- Fig. 14 : Change of yield stress v/s photodegradation time in UV chamber
- Fig. 15 : Change of strain at break v/s photodegradation time in UV chamber
- Fig. 16 : Photo induced weight loss of the polymer films under air or nitrogen atmosphere
- Fig. 17 : FT-IR spectra of volatile products evolved from the irradiated PVC-TiO2 (1.5 wt. %) film under air. The inset shows the evolved CO2 concentration as a function of the irradiation time
- Fig. 18 : Changes of average molecular weight polydispersity and gel amount in PS and PS with ketones after UV irradiation
- Fig. 19 : Mechanism for photodegradation of PS
- Fig. 20 : Mechanism for iniatiationof photodegradation of PS by benzophenone
- Fig. 21 : Structure of WD-70 silicone
- Fig. 22 : Weight loss curve of pure PS, PS-TiO2 and PS-GTiO2 composite films under illuination in air
- Fig. 23 : Formation of active oxygen species
- Fig. 24 : Dissociation of main chain of polystyrene containing carbonyl group
- Table 3 : Stress-at-break of PS and PS with ketones (A=acetophenone, B=benzophenone) before and after UV irradiation
- Table 4 : The variation of molecular weight of polymer films with irradiation time by GPC |
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in PAINTINDIA > Vol. LX, N° 5 (05/2010) . - p. 81-96
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Photodegradation of polymers, relevance for a coating chemist - Part II in PAINTINDIA, Vol. LX, N° 5 (05/2010)
