Long wavelength photosensitizers in photoinitiated cationic polymerization: The effect of quinoxaline derivatives on photopolymerization

Date

2013-06-07

Author

Corakci, Bengisu
Hacioglu, Serife O.
Toppare, Levent Kamil
Bulut, Umut

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This article describes the use of functionalized quinoxaline derivatives as photosensitizers for diaryliodonium salt photoinitiators. Highly conjugated compounds with good absorption bands in long wavelength UV and visible region are presented. These versatile intermediates facilitate photoinitiated cationic polymerization of commercially important monomers such as cyclic ethers and vinyl epoxides. Polymerizations were carried out using long wavelength UV light in the presence of diphenyliodonium hexafluorophosphate (Ph2I+PF6-). The polymerizations were monitored by optical pyrometry (OP). In addition, we also demonstrate that it was also possible to initiate photopolymerizations under solar irradiation in the presence of these photosensitizers.

Subject Keywords

Organic Chemistry, Polymers and Plastics

URI

https://hdl.handle.net/11511/45062

Journal

POLYMER

DOI

https://doi.org/10.1016/j.polymer.2013.04.008

Collections

Department of Chemistry, Article

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Citation Formats

B. Corakci, S. O. Hacioglu, L. K. Toppare, and U. Bulut, “Long wavelength photosensitizers in photoinitiated cationic polymerization: The effect of quinoxaline derivatives on photopolymerization,” POLYMER, pp. 3182–3187, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/45062.