Photochemical oxidation of poly-N-vinylcarbazole by electron-acceptors

Kolninov, O.V.; chuk, V.K. Milin; Strukov, Ye.G.; Kolesnikova, V. V.

doi:10.1016/0032-3950(80)90089-1

Cited by 5 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In presence of CHI 3 , the photostructuration of the polymer may occur by a different mechanism. As postulated by Kolninov et al, 18,19 a bridge between the carbazolyl groups is created by the intermediate of the iodoform. No C-N scission is involved.…”

Section: Photochemical Behavior Of Cem:omai Under Laser Exposurementioning

confidence: 97%

See 1 more Smart Citation

Chemical photostructuration in iodoform-doped carbazolic copolymers for holographic recording

Chilat

Bodin²,

Chambon³

et al. 2007

SPIE Proceedings

View full text Add to dashboard Cite

Carbazol-containing polymers were shown to be good reliefographic photosensitive substrates for holographic registration. Holographic images with satisfactory properties were obtained with carbazolic copolymers containing carbazolylethylmethacrylate and octylmethacrylate units and iodoform as sensitizer. The final goal of this study is to find the best copolymer formulation ensuring large amount of data stored with a high transfer rate and an optimized lifetime of the hologram and of the host polymer. It is then crucial to elucidate the involved photochemical mechanisms. We first carried out irradiations at 405 nm (wavelength of the laser diode used for holographic recording) in order to follow the photostructuration of the doped polymer. Spectroscopic analyses showed that the formation of a charge transfer complex is observed and its increase of concentration in the polymer could be followed versus exposure time. We also focused our attention on the durability of the hologram and of the polymeric matrix itself. Under irradiations representative of natural ageing (λ>300 nm), we have shown that the complex is successively formed and destroyed and that the photodegradation of the polymer matrix was also observed.

show abstract

Section: Photochemical Behavior Of Cem:omai Under Laser Exposurementioning

confidence: 97%

“…et al 18,19 have proposed the following mechanism to explain the photostructuration of the polymer in solution (scheme 3):…”

Section: Introductionmentioning

confidence: 99%