Journal article
Thiol−Ene Photopolymerization Kinetics of Vinyl Acrylate/Multifunctional Thiol Mixtures
Macromolecules, Vol.37(10), pp.3606-3613
05/18/2004
DOI: 10.1021/ma035728p
Abstract
The photopolymerization of multifunctional thiol (trimethylolpropane tris(3-mercaptopropionate))/vinyl acrylate mixtures as a function of thiol content in the presence and absence of photoinitiators has been investigated using real-time FTIR, thin-film calorimetry, and 2D-COSY NMR. The addition of a multifunctional thiol to vinyl acrylate significantly enhances the conversion of the vinyl double bonds of vinyl acrylate due to the preferential addition of the thiyl radical to the vinyl group. Two separate free-radical polymerization processes, acrylate homopolymerization and thiol/vinyl ester copolymerization, occur simultaneously in thiol/vinyl acrylate mixtures. Thin-film calorimetry and 2D-COSY NMR results are consistent with real-time FTIR results, giving strong evidence for two simultaneous free-radical processes.
Details
- Title: Subtitle
- Thiol−Ene Photopolymerization Kinetics of Vinyl Acrylate/Multifunctional Thiol Mixtures
- Creators
- Tai Y LeeTodd M RoperE. Sönny JonssonC. A GuymonC. E Hoyle
- Resource Type
- Journal article
- Publication Details
- Macromolecules, Vol.37(10), pp.3606-3613
- Publisher
- American Chemical Society
- DOI
- 10.1021/ma035728p
- ISSN
- 0024-9297
- eISSN
- 1520-5835
- Language
- English
- Date published
- 05/18/2004
- Academic Unit
- Chemical and Biochemical Engineering
- Record Identifier
- 9984003914602771
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