期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 51, 期 23, 页码 5046-5055出版社
WILEY
DOI: 10.1002/pola.26935
关键词
acrylamide; adhesives; camphorquinone; dental materials; DSC; methacrylate; phosphonic acids; phosphonic acids and phosphonates; photo-DSC; photopolymerization kinetics; photosensitizer; polarity; iodonium
资金
- EGIDE, Partenariat Hubert Curien French/Australian Science and Technology [FAST2008 18603VH, FAST2010 23205WC]
- Australian Department of Innovation, Industry, Science and Research [FR080034, FR100037]
- Laboratoire de Chimie Moleculaire et Thioorganique within the Institute of Chemistry [INC3M FR 3038]
- RMPP (Reseau Materiaux, Polymeres, Plasturgie) in France
- Department of Materials Engineering, Monash University in Australia
- Ministere de la Recherche et des Nouvelles Technologies
- CNRS (Centre National de la Recherche Scientifique)
- Region Basse-Normandie
- European Union
- Australian Research Council [ARC DP1093217]
Phosphonic acids are known to be useful monomers in dental restorative materials because of their good potential to provide enhanced adhesion to hydroxyapatite and their high hydrolytic stability. In this study, the photopolymerization of phosphonic acid-based monomer via the camphorquinone (CQ)/ethyl-4-(dimethylaminobenzoate) (EDAB) photoredox system is compared with a ternary system composed of iodonium hexafluorophosphate and CQ/EDAB. Photocalorimetry shows that the ternary system does not provide a significant acceleration of the polymerization with either acrylamide or methacrylate phosphonic acids. The complexation of the iodonium by the phosphonic moiety of the acidic monomers leads to a lowered iodonium reactivity and reduced polarizability of the medium and as a consequence limits the rate enhancement effect normally observed by phosphonic acids on the polymerization rate. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 5046-5055
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