Free Radical Polymerization Photoinitiated by Riboflavin/Amines. Effect of the Amine Structure

Polymerization rates of 2-hydroxyethyl methacrylate (HEMA) photoinitiated by riboflavin were investigated using as co-initiator several amines of different structure. The photoinitiation efficiency is highly dependent on the structure of the amine. The photochemical behavior of these systems was inv...

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Bibliographic Details
Published in:Macromolecules 2001-04, Vol.34 (9), p.2845-2847
Main Authors: Encinas, M. V, Rufs, A. M, Bertolotti, S, Previtali, C. M
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Physicochemistry of polymers
Polymerization
Polymers and radiations
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Summary:Polymerization rates of 2-hydroxyethyl methacrylate (HEMA) photoinitiated by riboflavin were investigated using as co-initiator several amines of different structure. The photoinitiation efficiency is highly dependent on the structure of the amine. The photochemical behavior of these systems was investigated under the polymerization conditions. The results are explained in terms of the dependence of the amino radicals production and the reactivity of these radicals toward monomer double bonds with the structural features of the amines.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma001649r