Abstract

This is a competing continuation application, twice funded previously over the last ten years. The overall goal of this research is to: (i) develop novel monomer systems that will be more rapidly polymerizable, reach higher double bond conversions, display improved mechanical properties, and be subject to limited oxygen inhibition; (ii) synthesize monomers with novel allyl sulfide functional groups that form reversible crosslinks and enable significant stress relaxation during photo-polymerization; and (iii) develop a comprehensive understanding of the critical stress evolution that occurs in these and other photo-curing monomer systems (including currently used methacrylates), and use the chemistry developed in the first two Aims to create a functional polymeric system that can be employed in improved Dental restorative composite materials. This research has progressed significantly since the first funding cycle, and has resulted in numerous publications and patents. ? ?

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Dental & Craniofacial Research (NIDCR)
Type
Research Project (R01)
Project #
5R01DE010959-12
Application #
7196480
Study Section
Oral, Dental and Craniofacial Sciences Study Section (ODCS)
Program Officer
Drummond, James A
Project Start
1995-09-15
Project End
2010-03-31
Budget Start
2007-04-01
Budget End
2008-03-31
Support Year
12
Fiscal Year
2007
Total Cost
$337,171
Indirect Cost

  Institution

Name
University of Colorado at Boulder
Department
Engineering (All Types)
Type
Schools of Engineering
DUNS #
007431505
City
Boulder
State
CO
Country
United States
Zip Code
80309

  Publications

Wydra, James W; Cramer, Neil B; Stansbury, Jeffrey W et al. (2014) The reciprocity law concerning light dose relationships applied to BisGMA/TEGDMA photopolymers: theoretical analysis and experimental characterization. Dent Mater 30:605-12
Park, Hee Young; Kloxin, Christopher J; Fordney, Mark F et al. (2012) Stress Reduction and T(g) Enhancement in Ternary Thiol-Yne-Methacrylate Systems via Addition-fragmentation Chain Transfer. Macromolecules 45:5647-5652
Ye, Sheng; Azarnoush, Setareh; Smith, Ian R et al. (2012) Using hyperbranched oligomer functionalized glass fillers to reduce shrinkage stress. Dent Mater 28:1004-11
Park, Hee Young; Kloxin, Christopher J; Abuelyaman, Ahmed S et al. (2012) Stress relaxation via addition-fragmentation chain transfer in high T(g), high conversion methacrylate-based systems. Macromolecules 45:5640-5646
Park, Hee Young; Kloxin, Christopher J; Fordney, Mark F et al. (2012) Stress relaxation of trithiocarbonate-dimethacrylate-based dental composites. Dent Mater 28:888-93
Park, Hee Young; Kloxin, Christopher J; Abuelyaman, Ahmed S et al. (2012) Novel dental restorative materials having low polymerization shrinkage stress via stress relaxation by addition-fragmentation chain transfer. Dent Mater 28:1113-9
Kloxin, Christopher J; Scott, Timothy F; Park, Hee Young et al. (2011) Mechanophotopatterning on a photoresponsive elastomer. Adv Mater 23:1977-81
Ye, Sheng; Cramer, Neil B; Smith, Ian R et al. (2011) Reaction Kinetics and Reduced Shrinkage Stress of Thiol-Yne-Methacrylate and Thiol-Yne-Acrylate Ternary Systems. Macromolecules 44:9084-9090
Ye, Sheng; Cramer, Neil B; Stevens, Blake E et al. (2011) Induction Curing of Thiol-acrylate and Thiolene Composite Systems. Macromolecules 44:4988-4996
Cramer, N B; Stansbury, J W; Bowman, C N (2011) Recent advances and developments in composite dental restorative materials. J Dent Res 90:402-16

Showing the most recent 10 out of 27 publications