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| Titel: |
The Investigation of Oligomeric Azomethyn Dyes' Reactivity during Radical Reactions in Comparison with their Inhibiting Action at Photooxidation of the Cellulose Acetate |
| Auteur: |
Kalontarov, I. Ya Niyazi, F. F. In, O. A. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 19 (1993) nr. 3-4 pagina's 167-173 |
| Jaar: |
1993-02-01 |
| Inhoud: |
The kinetic data on the effective influence of oligometric dyes-azomethyn compounds (AC) chain conjugation on the polymerization rate of styrol have been obtained. Oligomeric AC reduce radical polymerization rate more than in 10 times in comparison with low-molecular models having ─C═N bonds. The reactivity of polyconjugated AC depends on delocalization effeciency of л-electrons along the chain of conjugation. It has been established that the inhibiting activity of dyes having “carbon-nitrogen” double bonds rises with the increase of polymerization temperature and concentration of oligomeric AC. The results of AC reactivity in radical reactions are correlated in accordance with their light-stabilization in radical processes of photooxidative destruction of cellulose acetate. The use of oligomeric dyes allows for the possibility to control of styrol radical polymerization. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 14 van 14 gevonden artikelen
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