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Several ferrocenium salts as efficient photoinitiators and thermal initiators for cationic epoxy polymerization

Paper ID Volume ID Publish Year Pages File Format Full-Text
28253 44066 2007 6 PDF Available
Title
Several ferrocenium salts as efficient photoinitiators and thermal initiators for cationic epoxy polymerization
Abstract

A study of the photoinitiated and thermally initiated cationic polymerizations of epoxy oligomers with three ferrocenium salt photoinitiators bearing different arene ligands had been conducted. These photoinitiators were cyclopentadienyl-Fe-carbazole hexafluorophosphate ([Cp-Fe-carbazole]+PF6−), cyclopentadienyl-Fe-N-ethylcarbazole hexafluorophosphate ([Cp-Fe-n-ethylcarbazole]+PF6−) and cyclopentadienyl-Fe-aminonaphthalene hexafluorophosphate ([Cp-Fe-aminonaphthalene]+PF6−). They were synthesized by the reaction of ferrocene and the corresponding arenes. These ferrocenium salts were capable of photoinitiating the cationic polymerization of epoxide directly on irradiation with long-wavelength UV light. Comparative studies demonstrated that they were more effective photoinitiators than I-261 due to the strong absorption above 300 nm. Preliminary studies had shown that these photoinitiators could also be employed as thermal initiators for the cationic ring-opening polymerization of epoxides at moderate temperatures.

Keywords
Cationic photopolymerization; Ferrocenium salts; Photoinitiators; Thermal initiators
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Several ferrocenium salts as efficient photoinitiators and thermal initiators for cationic epoxy polymerization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 187, Issues 2–3, 15 April 2007, Pages 389–394
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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