Development of new heterobicationic monomethine dyes as effective photoinitiator of free radical polymerization in visible‐light region |
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| Authors: | Janina Kabatc Mirosława Kaczorowska Beata Jędrzejewska Jerzy Pączkowski |
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| Affiliation: | University of Technology and Life Sciences, Faculty of Chemical Technology and Engineering, Seminaryjna 3, Bydgoszcz 85‐326, Poland |
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| Abstract: | The dye initiators consisting of N‐[3‐(p‐alkylpyridine)propyl]‐2‐[N‐(3‐bromopropyl)quinoline]‐2‐methylenebenzotiazolium diiodides as chromophores and n‐butyltriphenylborate anion as electron donor were prepared to achieve an efficient photoinitiator of free radical polymerization in a visible‐light region. The relative photoinitiating efficiencies of novel photoinitiators of vinyl monomers polymerization were evaluated. The results obtained clearly documented that the bicationic photoinitiators exhibit a marked increase in the photoinitiation ability compared to the initiators consisting of a single charged hemicyanine dye. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 |
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| Keywords: | bicationic monomethine dye initiator photopolymerization kinetics |
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