Monomeric asymmetric two- and three-cationic monomethine cyanine dyes as novel photoinitiators for free-radical polymerization

Several two- and three-cationic monomethine cyanine dyes, possessing a benzothiazolium moiety were synthesized and evaluated as initiators of the free radical polymerization of 2-ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate under visible light. Dyes bearing 1-methylpyrrolidinium, 4-methylmorp...

Full description

Saved in:
Bibliographic Details
Published inDyes and pigments Vol. 86; no. 2; pp. 133 - 142
Main Authors Kabatc, Janina, Pączkowski, Jerzy
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.07.2010
Subjects
Asymmetry
Bearing
Cyanine dyes
Derivatives
Dyes
Initiators
Monomethine dyes
Photoinitiator
Photoinitiators
Photopolymerization
Polymerization
Monomethine dyes
Photopolymerization
Photoinitiator
Online AccessGet full text

Cover

More Information
Summary:Several two- and three-cationic monomethine cyanine dyes, possessing a benzothiazolium moiety were synthesized and evaluated as initiators of the free radical polymerization of 2-ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate under visible light. Dyes bearing 1-methylpyrrolidinium, 4-methylmorpholinium, pyridinium and 3-(N,N-dimethylamino)propan-1-ol substituents were useful initiators. All derivatives absorbed in the region 510–570 nm and displayed molar absorption coefficients of 40 000–60 000 dm 3 mol −1 cm −1. A kinetic study of photoinitiated polymerization performed with the use of the electron donor n-butyltriphenylborate salt showed that the dyes were efficient two-component photoinitiators.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2009.12.007