Photostabilization of polymers

J. F. Rabek and B. Ranby, Photodegradation, Photo-oxidation and Photostabilization of Polymers, Interscience, New York (1975). 

B. Ranby and J.F. Rabek, Photodegradation, Photooxidation and Photostabilization of Polymers,... 

Ranby, B. Rabek, J. F., "Photodegradation, Photooxidation and Photostabilization of Polymers", John Wiley Sons, New York, 1975. 

Not always is the PFR a side undesired reaction in polymers. In some cases, it has been used for practical purposes like selective image development [248], Another important use of the PFR is the photostabilization of polymers [249]. Aromatic esters and polyesters are sometimes mixed with other polymers in order to protect them from light. This delays aging of the polymer because the light is... 

Hydroxyphenylbenzotriazoles have long been used as photostabilizers of polymers. For further details, see the 1990 review by Rabek photostabilizing mechanism of o-hydroxyphenylbenzotriazoles has been well investigated <87JPC1408). The absorption and fluorescence spectra of these photostabilizers have been the subjects of many publications (see Section 4.01.2.9). There are a great number of commercially available 2-(o-hydroxyphenyl)benzotriazoles. They have been widely used in the photostabilization of polypropylene, polystyrene, polyacrylates. 

Ranby B, Rabek JF (1975) Photodegradation, photo-oxidation and photostabilization of polymers. Interscience, New York, p 45... 

Rabek J F (1990) Photostabilization of polymers, Elsevier Applied Publishers London. 

Ranby, B., and Rabek, J. F. niotod radation, photooxidation and photostabilization of polymers. Sect 4.1.1.2. New Yoik Wiley Sons 1975. 

The photostabilization of polymers continues to be a highly prolific area of industrial and academic interest, particularly as new systems are constantly being developed. Several review articles have appeared discussing the types of conventional light stabilizers available and their possible modes of action." " Other articles have dealt with the physical aspects of syner-... 

Rabek, J.F. Photostabilization of Polymers Principles and Applications Elsevier Applied Science London, 1990. Metered Dose Inhaler (MDI) and Dry Powder Inhaler (DPI) Drug Products, Draft Guidance for Industry U.S. Department of Health and Human Services Food and Drug Administration Center for Drug Evaluation and Research (CEDER) Rockville, MD, Oct 1998 1-62. 

B.R nby and J.F.Rabek,"Photodegradation,Photo-oxidation and Photostabilization of Polymers",WileyyLondon,1975 4 R F.Hoore,Polymer,, 493 (1963). 

These investigations are part of a research program on photo-oxidation and photostabilization of polymers supported by the Swedish Board for Technical Development (STU) and the Swedish Polymer Research Foundation (SSP). 

Since 1971 our department is Involved in study of photodegradation, sensitized photooxidation and photostabilization of polymers. A big effort is made in the study of singlet oxygen oxidation of several important polymers, such as polydienes, poly(vinyl chloride), polystyrene and polyesters, reactions of atomic oxygen and ozone with polydienes and photostabilization of these polymers. 

B. Renby, la. Rabek, Photodestruction, photooxidation, Photostabilization of polymers, Moscow, Publishing house Mir (1978), 676 in Russian). 

On the other hand several transition metal complexes,e.g. dithiocarbamate and 2-hydroxylacetophenone oxime partixipate in the photostabilization of polymers (3,70-76). 

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