Synthesis, functional modification, and characterization of polysilane copolymers for enhanced photosensitivity and photobleaching

Sonny A. Ekhorutomwen; Samuel P. Sawan

doi:10.1117/12.311530

9 June 1998 Synthesis, functional modification, and characterization of polysilane copolymers for enhanced photosensitivity and photobleaching

Sonny A. Ekhorutomwen, Samuel P. Sawan

Author Affiliations +

Proceedings Volume 3282, Photosensitive Optical Materials and Devices II; (1998) https://doi.org/10.1117/12.311530
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Hydropolysilane copolymers have been synthesized by the Wurtz- type reductive coupling of mono and diorganodichlorosilane comonomers with sodium dispersion in a refluxing toluene medium. Post-synthetic modifications of the copolymers have been carried out to improve their photosensitivity to UV/Vis energy, by the substitution of electron-withdrawing groups such as acetate (from mercuric acetate), p-nitrophenol, p-cyanophenol, and p- chlorocinnamic acid. The modified and unmodified copolymers, have been extensively characterized by various spectroscopic techniques such as GPC, FTIR, H-NMR, C-NMR, UV/VIS, etc. The results reveal that, the properties as well as the reactivities of hydropolysilanes are strongly dependent on the types of substituent groups on the Si-Si main chains.

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Sonny A. Ekhorutomwen and Samuel P. Sawan "Synthesis, functional modification, and characterization of polysilane copolymers for enhanced photosensitivity and photobleaching", Proc. SPIE 3282, Photosensitive Optical Materials and Devices II, (9 June 1998); https://doi.org/10.1117/12.311530

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