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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Mechanistic Modelling and Network Properties of Ternary Thiol–Vinyl Photopolymerizations

Sirish K. Reddy A , Neil B. Cramer A , Michael Kalvaitas A , Tai Yeon Lee A and Christopher N. Bowman A B C
+ Author Affiliations
- Author Affiliations

A Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309-0424, USA.

B Department of Restorative Dentistry, University of Colorado Health Sciences Center, Denver, CO 80045-0508, USA.

C Corresponding author. Email: christopher.bowman@colorado.edu

Australian Journal of Chemistry 59(8) 586-593 https://doi.org/10.1071/CH06193
Submitted: 6 June 2006  Accepted: 16 August 2006   Published: 8 September 2006

Abstract

Ternary thiol–vinyl polymerizations offer a unique platform for improved control over polymerization kinetics and network properties as compared to both binary thiol–vinyl systems and traditional (meth)acrylic systems. Therefore, this study seeks to improve the fundamental understanding of the complex ternary thiol–vinyl systems to enable enhanced control over polymerization kinetics, network evolution, and, ultimately, network properties. The polymerization kinetics and material properties afforded by thiol–triazine–methacrylate systems are investigated. The ternary kinetics are successfully predicted by understanding the reaction mechanisms of the corresponding binary components. In ternary thiol–ene–(meth)acrylate systems, the variation in stoichiometric ratios of thiol and ene does not significantly impact material properties as in thiol–ene- or thiol–(meth)acrylate systems. Further, the ternary systems also provide unique polymer properties such as high glass transition temperature with narrow transition widths.


References


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