Thiol-ene Free-Radical and Vinyl Ether Cationic Hybrid Photopolymerization
Document Type
Article
Publication Date
11-27-2007
Department
Polymers and High Performance Materials
Abstract
The photopolymerization kinetics of mixtures containing a trithiol and a trivinyl ether (in different molar ratios) with a cationic photoinitiator were investgated by real-time infrared and real-time theology. Using this combination of real-time methods to follow both chemical conversion and theological property development, a clear picture of physical property development during the complete polymerization process is obtained. This represents the first example of a thiol-ene radical/ene cationic two-step hybrid photopolymerization process in which thiol copolymerizes with vinyl ether functional groups in a rapid radical step growth process followed by vinyl ether cationic bomopolymerization. The sequential thiol-vinyl ether copolymerization and the vinyl ether cationic polymerization result in cross-linked networks with thermal and mechanical properties that are combinations of each system.
Publication Title
Macromolecules
Volume
40
Issue
24
First Page
8788
Last Page
8793
Recommended Citation
Wei, H.,
Li, Q.,
Ojelade, M.,
Madbouly, S.,
Otaigbe, J. U.,
Hoyle, C. E.
(2007). Thiol-ene Free-Radical and Vinyl Ether Cationic Hybrid Photopolymerization. Macromolecules, 40(24), 8788-8793.
Available at: https://aquila.usm.edu/fac_pubs/1871