The design of photoreactive polymer systems for imaging processes
| Autor: | Samir Farid, R. Searle, Jack L R Williams, Donald P. Specht, R. C. Daly, D. G. Borden, J. C. Doty, H. J. Chang, P. A. Martic |
|---|---|
| Rok vydání: | 1977 |
| Předmět: | |
| Zdroj: | Pure and Applied Chemistry. 49:523-538 |
| ISSN: | 1365-3075 0033-4545 |
| Popis: | The use of polymers in photoreactive imaging systems depends upon the interrelationship between the polymer physical properties and the photosensitive response. Modifications of the structure and physical properties by synthetic means permit control over the physical properties, such as solubility, melting point, glass transition temperature, and crystallinity. Specific polymer imaging systems depend upon these properties in order to function. Modifications of light absorbing chromophores and understanding the factors controlling sensitization permit adjustment of the wavelength response over the range from 250–650 nm. Triplet energy transfer from optical sensitizers to the photoreactive moieties is the most probable mechanism of sensitization. We have found that competing side reactions such as oxidation and photoreactions of the sensitizer can reduce the efficiency of sensitization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|