1
|
Lamparth I, Angermann J, Fässler P, Schnur T, Graff B, Ohl C, Lalevée J, Catel Y. Influence of the hydroperoxide structure on the reactivity and mechanical properties of self-cure dental composites. Dent Mater 2024:S0109-5641(24)00138-6. [PMID: 38851966 DOI: 10.1016/j.dental.2024.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
OBJECTIVES Hydroperoxides are key constituents of two-component dental materials. The objective of this study was to evaluate the influence of the hydroperoxide structure on the reactivity and on the mechanical properties of self-cure composites. METHODS Hydroperoxides HP1-3 were synthesized by selective catalytic oxidation of the corresponding para-substituted cumene precursors and isolated in high purity. They were characterized by 1H NMR and 13C NMR spectroscopy. 16 self-cure composites, based on the redox initiator system hydroperoxide (Cumene hydroperoxide (CHP), HP1-3 or tert.-Amyl hydroperoxide (TAH))/polymerizable thiourea ATU1/copper(II) acetylacetonate, were formulated in Sulzer Mixpac two-component syringes. An equimolar hydroperoxide/ATU1 ratio was selected for each self-cure composite. The reactivity and the final double-bond conversions obtained with these two-component materials was assessed using RT-FTIR spectroscopy. The flexural strength and modulus were measured using a three-point bending setup, after storage of the specimens for 45 min at 37 °C (dry) and for 24 h in water at 37 °C. The working time of each self-cure composite was measured using an oscillating rheometer. RESULTS CHP derivatives bearing an electron withdrawing group (HP2: ester or HP3: nitrile) in the para position were found to be more reactive than CHP, whereas the compound bearing an electron donating group (tert-butyl, HP1) was less reactive; molecular modelling data were reported for a better understanding of this structure/reactivity/efficiency relationship. All CHP derivatives were more reactive than the aliphatic hydroperoxide TAH. Excellent mechanical properties were obtained with self-cure composites containing either CHP or a para-functionalized CHP derivative. By carefully selecting the amounts of oxidizing/reducing agents and metal catalyst, suitable working times can be obtained with all evaluated hydroperoxides. HP3, thanks to its high reactivity, is nonetheless the most promising compound. SIGNIFICANCE The curing rate of self-cure composites can be adapted by modifying the structure of the hydroperoxide. In agreement with molecular modelling data, the incorporation of CHP derivatives bearing an electron withdrawing group in the para position is particularly attractive. Indeed, due to a significant reactivity enhancement, the desired properties (working time, flexural strength/modulus) can be obtained by incorporating moderate amounts of hydroperoxide/acylthiourea as well as particularly low contents of metal catalyst to the two-component dental materials.
Collapse
Affiliation(s)
- Iris Lamparth
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Jörg Angermann
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Pascal Fässler
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Thomas Schnur
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Bernadette Graff
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; Université de Strasbourg, France
| | - Coralie Ohl
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; Université de Strasbourg, France
| | - Jacques Lalevée
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; Université de Strasbourg, France
| | - Yohann Catel
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein.
| |
Collapse
|
2
|
Catel Y, Angermann J, Grob B, Fässler P, Lamparth I, Schnur T. Acylthiourea oligomers as promising reducing agents for dimethacrylate-based two-component dental materials. Dent Mater 2023; 39:886-893. [PMID: 37591708 DOI: 10.1016/j.dental.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 08/19/2023]
Abstract
OBJECTIVES Currently used thiourea-based two-component dental materials may release bitter compounds if they are not properly cured. To address this issue, the objective of this study was to evaluate the potential of acylthiourea oligomers as reducing agents for the development of self-cure composites. METHODS Acylthiourea oligomers ATUO1-3 were synthesized via cotelomerization of the acylthiourea methacrylate ATU1 with butyl methacrylate. They were characterized by 1H NMR spectroscopy and size exclusion chromatography. Self-cure composites based on the redox initiator system cumene hydroperoxide/acylthiourea oligomer/copper(II) acetylacetonate were formulated. The flexural strength and modulus were measured using a three-point bending setup. The double bond conversions were determined using NIR spectroscopy. The working time of each self-cure composite was measured using an oscillating rheometer. Leaching experiments using light-cure composites were performed in DMSO-d6. RESULTS Acylthiourea oligomers ATUO1-3 were successfully synthesized in good yields. Both the oligomer molecular weight and the amount of thiourea groups were varied. Self-cure composites containing ATUO1 or ATUO2 as reducing agents exhibited excellent mechanical properties and high double-bond conversions. The amounts of reducing agent, cumene hydroperoxide and copper(II) acetylacetonate were shown to have a significant impact on the working time. Moreover, a correlation between flexural modulus and the amount of metal salt was clearly established. Self-cure composites containing the oligomer ATUO1 exhibited a longer working time than materials containing ATU1 or acetylthiourea. Contrary to acetylthiourea, ATUO1 was not able to leach out of light-cured composites. SIGNIFICANCE Acylthiourea oligomers are promising reducing agents for the formulation of two-component dental materials that do not induce a bitter taste in mouth.
Collapse
Affiliation(s)
- Yohann Catel
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein.
| | - Jörg Angermann
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Benjamin Grob
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Pascal Fässler
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Iris Lamparth
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Thomas Schnur
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| |
Collapse
|
3
|
Panpisut P, Praesuwatsilp N, Bawornworatham P, Naruphontjirakul P, Patntirapong S, Young AM. Assessment of Physical/Mechanical Performance of Dental Resin Sealants Containing Sr-Bioactive Glass Nanoparticles and Calcium Phosphate. Polymers (Basel) 2022; 14:polym14245436. [PMID: 36559804 PMCID: PMC9783923 DOI: 10.3390/polym14245436] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/03/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
The aim of this study was to assess the chemical/mechanical properties of ion-releasing dental sealants containing strontium-bioactive glass nanoparticles (Sr-BGNPs) and monocalcium phosphate monohydrate (MCPM). Two experimental sealants, TS1 (10 wt% Sr-BGNPs and 2 wt% MCPM) and TS2 (5 wt% Sr-BGNPs and 4 wt% MCPM), were prepared. Commercial controls were ClinproXT (CP) and BeautiSealant (BT). The monomer conversion (DC) was tested using ATR−FTIR (n = 5). The biaxial flexural strength (BFS) and modulus (BFM) were determined (n = 5) following 24 h and 7 days of immersion in water. The Vickers surface microhardness (SH) after 1 day in acetic acid (conc) versus water was tested (n = 5). The bulk and surface calcium phosphate precipitation in simulated body fluid was examined under SEM-EDX. The ion release at 4 weeks was analyzed using ICP-MS (n = 5). The DC after 40 s of light exposure of TS1 (43%) and TS2 (46%) was significantly lower than that of CP (58%) and BT (61%) (p < 0.05). The average BFS of TS1 (103 MPa), TS2 (123 MPa), and BT (94 MPa) were lower than that of CP (173 MPa). The average BFM and SH of TS1 (2.2 GPa, 19 VHN) and TS2 (2.0 GPa, 16 VHN) were higher than that of CP (1.6 GPa, 11 VHN) and BT (1.3 GPa, 12 VHN). TS1 showed higher Ca, P, and Sr release than TS2. Bulk calcium phosphate precipitation was detected on TS1 and TS2 suggesting some ion exchange. In conclusion, the DC of experimental sealants was lower than that of commercial materials, but their mechanical properties were within the acceptable ranges. The released ions may support remineralizing actions.
Collapse
Affiliation(s)
- Piyaphong Panpisut
- Faculty of Dentistry, Thammasat University, Pathum Thani 12120, Thailand
- Thammasat University Research Unit in Dental and Bone Substitute Biomaterials, Thammasat University, Pathum Thani 12120, Thailand
- Correspondence:
| | | | | | - Parichart Naruphontjirakul
- Biological Engineering Program, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
| | - Somying Patntirapong
- Faculty of Dentistry, Thammasat University, Pathum Thani 12120, Thailand
- Thammasat University Research Unit in Dental and Bone Substitute Biomaterials, Thammasat University, Pathum Thani 12120, Thailand
| | - Anne M. Young
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, Royal Free Hospital, Rowland Hill Street, London, NW3 2PF, UK
| |
Collapse
|
4
|
Mathematical modeling and parameter estimation for 1,6-Hexanediol diacrylate photopolymerization with bifunctional initiator. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
5
|
Lamparth I, Fässler P, Schnur T, Thetiot E, Lalevée J, Catel Y. Polymerizable thioureas as innovative reducing agents for self-cured and dual-cured dental materials. Dent Mater 2022; 38:1108-1116. [PMID: 35589440 DOI: 10.1016/j.dental.2022.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/27/2022] [Accepted: 04/27/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To evaluate polymerizable acylthioureas as reducing agents in two-component dental materials. METHODS Acylthioureas 1 and 2 were synthesized and characterized by 1H and 13C NMR spectroscopy. Self-cured composites based on the redox initiator system cumene hydroperoxide/acylthiourea 1 or 2/copper(II) acetylacetonate were formulated. Various amounts of cumene hydroperoxide, acylthiourea and copper(II) acetylacetonate were used. An equimolar cumene hydroperoxide/acylthiourea ratio was selected for each self-cured composite. The reactivity and the final double-bond conversions obtained with these two-component materials was assessed using RT-FTIR spectroscopy. The flexural strength and modulus were measured using a three-point bending setup, after storage of the specimens for 45 min at 37 °C (dry) and for 24 h in water at 37 °C. The working time of each composite was determined using an oscillating rheometer. RESULTS Acylthioureas 1 and 2 were synthesized in three to four steps. In combination with cumene hydroperoxide and copper(II) acetylacetonate, both prepared compounds were found to be effective reducing agents. The higher the amount of cumene hydroperoxide and acylthiourea in the self-cured composite, the higher the flexural modulus and the faster the polymerization (lower working times). Similarly, it was shown that increased copper(II) acetylacetonate amounts result in an acceleration of the curing as well as in an improvement of the mechanical properties. The self-cured composite containing 1.25 wt% of cumene hydroperoxide in the monomer mixture of the first paste and 2.00 wt% of acylthiourea 1 in the monomer mixture of the second one provided excellent mechanical properties as well as an optimal working time. SIGNIFICANCE Polymerizable acylthioureas can be used as reducing agents in two-component dental materials. Due to the presence of the methacrylate group, such structures should be efficiently incorporated into the network during polymerization and should not leach out of the composite after curing. As a result, such dental materials are not expected to exhibit bitterness properties.
Collapse
Affiliation(s)
- Iris Lamparth
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Pascal Fässler
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Thomas Schnur
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein
| | - Estelle Thetiot
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; Université de Strasbourg, France
| | - Jacques Lalevée
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; Université de Strasbourg, France
| | - Yohann Catel
- Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein.
| |
Collapse
|
6
|
Nanthananon P, Tanodekaew S, Tesavibul P, Manotham S, Kaewkong P, Channasanon S. Enhancing the mechanical properties of photosensitive binder jetting
PLA
via dual curing and thermal treatment. J Appl Polym Sci 2022. [DOI: 10.1002/app.51942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Phornwalan Nanthananon
- Biofunctional Materials and Devices Research Group National Metal and Materials Technology Center Pathum Thani Thailand
| | - Siriporn Tanodekaew
- Biofunctional Materials and Devices Research Group National Metal and Materials Technology Center Pathum Thani Thailand
| | - Passakorn Tesavibul
- Biofunctional Materials and Devices Research Group National Metal and Materials Technology Center Pathum Thani Thailand
| | - Supalak Manotham
- Biofunctional Materials and Devices Research Group National Metal and Materials Technology Center Pathum Thani Thailand
| | - Pakkanun Kaewkong
- Biofunctional Materials and Devices Research Group National Metal and Materials Technology Center Pathum Thani Thailand
| | - Somruethai Channasanon
- Biofunctional Materials and Devices Research Group National Metal and Materials Technology Center Pathum Thani Thailand
| |
Collapse
|
7
|
Influence of modified attapulgite on silicone pressure-sensitive adhesives properties. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02981-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
8
|
Suzuki Y, Mishima R, Matsumoto A. Bulk polymerization kinetics of methyl methacrylate at broad temperature range investigated by differential scanning calorimetry. INT J CHEM KINET 2022. [DOI: 10.1002/kin.21564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yasuhito Suzuki
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University Sakai Osaka Japan
| | - Ryutaro Mishima
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University Sakai Osaka Japan
| | - Akikazu Matsumoto
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University Sakai Osaka Japan
| |
Collapse
|
9
|
Suzuki Y, Shinagawa Y, Kato E, Mishima R, Fukao K, Matsumoto A. Polymerization-Induced Vitrification and Kinetic Heterogenization at the Onset of the Trommsdorff Effect. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yasuhito Suzuki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Yuya Shinagawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Eri Kato
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Ryutaro Mishima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Koji Fukao
- Department of Physics, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
| | - Akikazu Matsumoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| |
Collapse
|
10
|
Yoshihara K, Nagaoka N, Benino Y, Nakamura A, Hara T, Maruo Y, Yoshida Y, Van Meerbeek B. Touch-Cure Polymerization at the Composite Cement-Dentin Interface. J Dent Res 2021; 100:935-942. [PMID: 33771050 DOI: 10.1177/00220345211001020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ceramic restorations are often adhesively luted onto the tooth prep. The so-called touch-cure concept was developed to yield optimum polymerization of composite cement at the restoration-cement-tooth interface for immediate bond stabilization. Although this touch cure is theorized to initiate polymerization at the interface when the accelerator in the primer makes contact with the cement, this process has not yet been proven. This study aimed to elucidate the mechanism of touch cure by measuring the degree of conversion (DC) of composite cement applied with or without an accelerator-containing tooth primer (TP) versus an accelerator-free primer using real-time Fourier-transform infrared spectroscopy (RT-FTIR) and attenuated total reflection (ATR)-FTIR. Interfacial bond strength was measured in shear mode, the accelerator composition confirmed by X-ray fluorescence analysis (XRF), and the interfacial interaction of TP and composite cement with dentin investigated by X-ray diffraction (XRD), focused-ion-beam scanning electron microscopy (FIB-SEM) with 3-dimensional interface reconstruction, and transmission electron microscopy (TEM). RT/ATR-FTIR revealed the significantly highest DC when the composite cement was applied with the accelerator-containing primer. XRF disclosed a vanadium compound as a novel chemical accelerator within TP, instead of a classic chemical curing initiator system, to set off touch cure as soon the cement contacts the previously applied primer. Although the TP contains the acidic functional monomer 10-MDP for adhesion to tooth tissue, touch cure using the accelerator-containing TP combined the fastest/highest DC with the highest bond strength. FIB-SEM and TEM confirmed the tight interfacial interaction at dentin with submicron hybridization along with stable 10-MDP also Ca-salt nanolayering.
Collapse
Affiliation(s)
- K Yoshihara
- National Institute of Advanced Industrial Science and Technology (AIST), Health and Medical Research Institute, Takamatsu, Kagawa, Japan.,Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Department of Pathology & Experimental Medicine, Okayama, Japan
| | - N Nagaoka
- Okayama University Dental School, Advanced Research of Center for Oral and Craniofacial Science, Okayama, Japan
| | - Y Benino
- Okayama University, Graduate School of Environmental and Life Science, Okayama, Japan
| | - A Nakamura
- National Institute for Materials Science (NIMS), Electron Microscopy Analysis Station, Tsukuba, Ibaraki, Japan
| | - T Hara
- National Institute for Materials Science (NIMS), Electron Microscopy Analysis Station, Tsukuba, Ibaraki, Japan
| | - Y Maruo
- Department of Occlusion and Removable Prosthodontics, Okayama University Hospital, Okayama, Japan
| | - Y Yoshida
- Hokkaido University, Faculty of Dental Medicine, Department of Biomaterials and Bioengineering, Sapporo, Hokkaido, Japan
| | - B Van Meerbeek
- KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| |
Collapse
|
11
|
Reactive Extrusion of Maleic-Anhydride-Grafted Polypropylene by Torque Rheometer and Its Application as Compatibilizer. Polymers (Basel) 2021; 13:polym13040495. [PMID: 33562477 PMCID: PMC7915049 DOI: 10.3390/polym13040495] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/08/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022] Open
Abstract
This study is based upon the functionalization of polypropylene (PP) by radical polymerization to optimize its properties by influencing its molecular weight. Grafting of PP was done at different concentrations of maleic anhydride (MAH) and benzoyl peroxide (BPO). The effect on viscosity during and after the reaction was studied by torque rheometer and melt flow index. Results showed that a higher concentration of BPO led to excessive side-chain reactions. At a high percentage of grafting, lower molecular weight product was produced, which was analyzed by viscosity change during and after the reaction. Percentage crystallinity increased by grafting due to the shorter chains, which consequently led to an improvement in the chain's packing. Prepared Maleic anhydride grafted polypropylene (MAH-g-PP) enhanced interactions in PP-PET blends caused a partially homogeneous blend with less voids.
Collapse
|
12
|
Musgrave III CB, Kim K, Singstock NR, Salazar AM, Stansbury JW, Musgrave CB. Computational and Experimental Evaluation of Peroxide Oxidants for Amine–Peroxide Redox Polymerization. Macromolecules 2020; 53:9736-9746. [DOI: 10.1021/acs.macromol.0c02069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Charles B. Musgrave III
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Kangmin Kim
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Nicholas R. Singstock
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Austyn M. Salazar
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- School of Dental Medicine, Craniofacial Biology, University of Colorado Denver, Aurora, Colorado 80045, United States
| | - Jeffrey W. Stansbury
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- School of Dental Medicine, Craniofacial Biology, University of Colorado Denver, Aurora, Colorado 80045, United States
| | - Charles B. Musgrave
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80309, United States
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| |
Collapse
|
13
|
New bio-sourced hydrogen donors as high performance coinitiators and additives for CQ-based systems: Toward aromatic amine-free photoinitiating systems. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109794] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
14
|
Catalytic Activity of Hybrid Iron Oxide Silver Nanoparticles in Methyl Methacrylate Polymerization. Catalysts 2020. [DOI: 10.3390/catal10040422] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
One of the challenges in the preparation of poly(methyl methacrylate) (PMMA) is to develop new catalytic systems with improved efficiency. A hybrid iron oxide silver catalyst holds promise in solving this issue. Catalysts were prepared at room temperature by a two-step technique. First, iron oxide nanoparticles were prepared by the reduction of FeCl3 using sodium borohydride (NaBH4) at room temperature. Second, magnetic nanoparticles doped with a series of Ag nanoparticles (Ag, Ag/3 –amino propyltriethoxysilane (APTES) and Ag/poly(ethyleneimine) (PEI)). The prepared catalysts were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX), and Fourier-transform infrared spectroscopy (FTIR). The catalytic activity of Fe, Ag/Fe, PEI–Ag/Fe, and APTES–Ag/Fe in methyl methacrylate (MMA) polymerization was investigated in the presence of O2, N2, NaHSO3, and benzoyl peroxide in bulk or solution conditions. The produced polymer was characterized by gel permeation chromatography (GPC) and proton nuclear magnetic resonance spectroscopy (1HNMR). The structures of PEI–Ag/Fe and APTES–Ag/Fe are assumed. The conversion efficiency was 100%, 100%, 97.6%, and 99.1% using Fe, Ag/Fe, PEI–Ag/Fe, and APTES–Ag/Fe catalysts at the optimum conditions, respectively. Hybrid iron oxide silver nanoparticles are promising catalysts for PMMA preparation.
Collapse
|
15
|
Kirschner J, Paillard J, Graff B, Becht J, Klee JE, Lalevée J. 2‐Oxo‐2(
tert
‐butyldimethylsilyl)Acetic Acid (DKSi‐COOH) as a New Water‐Soluble Visible Light Type I Photoinitiator for Free Radical Polymerization. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900495] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Julie Kirschner
- Université de Haute‐Alsace CNRS, IS2M UMR 7361 F‐68100 Mulhouse France
- Université de Strasbourg France
| | - Julien Paillard
- Université de Haute‐Alsace CNRS, IS2M UMR 7361 F‐68100 Mulhouse France
- Université de Strasbourg France
| | - Bernadette Graff
- Université de Haute‐Alsace CNRS, IS2M UMR 7361 F‐68100 Mulhouse France
- Université de Strasbourg France
| | - Jean‐Michel Becht
- Université de Haute‐Alsace CNRS, IS2M UMR 7361 F‐68100 Mulhouse France
- Université de Strasbourg France
| | | | - Jacques Lalevée
- Université de Haute‐Alsace CNRS, IS2M UMR 7361 F‐68100 Mulhouse France
- Université de Strasbourg France
| |
Collapse
|
16
|
Siddiqui MN, Achilias DS, Redhwi HH. Effect of the side ethylene glycol and hydroxyl groups on the polymerization kinetics of oligo(ethylene glycol methacrylates). An experimental and modeling investigation. Polym Chem 2020. [DOI: 10.1039/d0py00498g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Polymerization of oligo(ethylene glycol) methyl ether methacrylate (POEGMMA300) and oligo(ethylene glycol) hydroxyethyl methacrylate (POEGHEMA).
Collapse
Affiliation(s)
| | - Dimitris S. Achilias
- Laboratory of Polymer and Dyes Chemistry and Technology
- Department of Chemistry
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - Halim Hamid Redhwi
- Chemical Engineering Department
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| |
Collapse
|
17
|
Kirschner J, Szillat F, Bouzrati-Zerelli M, Becht JM, Klee JE, Lalevée J. Sulfinates and sulfonates as high performance co-initiators in CQ based systems: Towards aromatic amine-free systems for dental restorative materials. Dent Mater 2019; 36:187-196. [PMID: 31791740 DOI: 10.1016/j.dental.2019.11.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 10/27/2019] [Accepted: 11/15/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVE The aim of our study is to develop amine-free photoinitiating systems (PISs) for the polymerization of representative dental methacrylate resins under blue light irradiation. PISs based on camphorquinone (CQ)/sulfinate and CQ/sulfonate, eventually in combination with an iodonium salt, are proposed and compared to the well-established CQ/amine system. The polymerization performances of thick (1.4 mm) samples of different methacrylate blends upon exposure to a commercial blue LED centered at 477 nm under air are described. Finally, the performances of the new developed PISs are evaluated for dental composites application. METHODS FTIR is used to monitor the photopolymerization profiles. ESR spectroscopy and electrochemical experiments are used to identify the radicals generated. Mechanical properties measurements and color stability measurements are carried out to determine the key properties of the dental composites prepared. RESULTS AND SIGNIFICIANCE The performances of the new proposed PISs for the photopolymerization of thick (1.4 mm) samples of methacrylate upon exposure to a blue dental LED under air are excellent. Similar or better performances and bleaching properties are obtained with the new proposed amine-free systems compared to those reached with the CQ/amine reference system. Dental composites with excellent mechanical properties and exceptional color stability are obtained. The involved chemical mechanisms for the initiation step were also established.
Collapse
Affiliation(s)
- Julie Kirschner
- Institut de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15 Rue Jean Starcky, 68057 Mulhouse Cedex, France
| | | | - Mariem Bouzrati-Zerelli
- Institut de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15 Rue Jean Starcky, 68057 Mulhouse Cedex, France
| | - Jean-Michel Becht
- Institut de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15 Rue Jean Starcky, 68057 Mulhouse Cedex, France
| | | | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15 Rue Jean Starcky, 68057 Mulhouse Cedex, France.
| |
Collapse
|
18
|
Cousins DS, Howell J, Suzuki Y, Samaniuk JR, Stebner AP, Dorgan JR. Infusible acrylic thermoplastic resins: Tailoring of chemorheological properties. J Appl Polym Sci 2019. [DOI: 10.1002/app.48006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dylan S. Cousins
- Department of Chemical and Biological Engineering Colorado School of Mines 1500 Illinois Street Golden Colorado 80401
| | - Jackson Howell
- Department of Chemical and Biological Engineering Colorado School of Mines 1500 Illinois Street Golden Colorado 80401
| | - Yasuhito Suzuki
- Department of Applied Chemistry, Graduate School of Engineering Osaka Prefecture University 1‐1 Gakuen‐cho, Naka‐ku, Sakai Osaka 599‐8531 Japan
| | - Joseph R. Samaniuk
- Department of Chemical and Biological Engineering Colorado School of Mines 1500 Illinois Street Golden Colorado 80401
| | - Aaron P. Stebner
- Department of Mechanical Engineering Colorado School of Mines 1500 Illinois Street Golden Colorado 80401
| | - John R. Dorgan
- Department of Chemical Engineering and Materials Science Michigan State University 428 South Shaw Lane East Lansing Michigan 48824
| |
Collapse
|
19
|
Tsagkalias IS, Vlachou A, Verros GD, Achilias DS. Effect of Graphene oxide or Functionalized Graphene Oxide on the Copolymerization Kinetics of Styrene/n-butyl Methacrylate. Polymers (Basel) 2019; 11:polym11060999. [PMID: 31167490 PMCID: PMC6630914 DOI: 10.3390/polym11060999] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/29/2019] [Accepted: 05/30/2019] [Indexed: 11/20/2022] Open
Abstract
Nanocomposite materials based on copolymers of styrene and n-butyl methacrylate with either graphene oxide (GO) or functionalized graphene oxide (F-GO) were synthesized using the in-situ bulk radical copolymerization technique. Reaction kinetics was studied both experimentally and theoretically using a detailed kinetic model also taking into account the effect of diffusion-controlled phenomena on the reaction kinetic rate constants. It was found that the presence of GO results in lower polymerization rates accompanied by the synthesis of copolymers having higher average molecular weights. In contrast, the presence of F-GO did not seem to significantly alter the conversion vs time curves, whereas it results in slightly lower average molecular weights. The first observation was attributed to side reactions of the initiator primary radicals with the hydroxyl groups on the surface of GO, resulting in lower initiator efficiency, whereas the second to grafted structures formed from copolymer macromolecules on the F-GO surface. The copolymerization model predictions including MWD data were found to be in satisfactory agreement with the experimental data. At least four adjustable parameters were employed and their best-fit values were provided.
Collapse
Affiliation(s)
- Ioannis S Tsagkalias
- Laboratory of Polymer and Dyes Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - Afrodite Vlachou
- Laboratory of Polymer and Dyes Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - George D Verros
- Laboratory of Polymer and Dyes Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - Dimitris S Achilias
- Laboratory of Polymer and Dyes Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| |
Collapse
|
20
|
Yun Y, Guan Y, Zhang Y. Patterned PHEMA Films Synthesized by Redox Polymerization for Multicellular Spheroid Generation. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yifan Yun
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ying Guan
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yongjun Zhang
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| |
Collapse
|
21
|
Kim K, Singstock NR, Childress KK, Sinha J, Salazar AM, Whitfield SN, Holder AM, Stansbury JW, Musgrave CB. Rational Design of Efficient Amine Reductant Initiators for Amine-Peroxide Redox Polymerization. J Am Chem Soc 2019; 141:6279-6291. [PMID: 30915845 DOI: 10.1021/jacs.8b13679] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Amine-peroxide redox polymerization (APRP) has been highly prevalent in industrial and medical applications since the 1950s, yet the initiation mechanism of this radical polymerization process is poorly understood so that innovations in the field are largely empirically driven and incremental. Through a combination of computational prediction and experimental analysis, we elucidate the mechanism of this important redox reaction between amines and benzoyl peroxide for the ambient production of initiating radicals. Our calculations show that APRP proceeds through SN2 attack by the amine on the peroxide but that homolysis of the resulting intermediate is the rate-determining step. We demonstrate a correlation between the computationally predicted initiating rate and the experimentally measured polymerization rate with an R2 = 0.80. The new mechanistic understanding was then applied to computationally predict amine reductant initiators with faster initiating kinetics. This led to our discovery of N-(4-methoxyphenyl)pyrrolidine (MPP) as amine reductant, which we confirmed significantly outperforms current state-of-the-art tertiary aromatic amines by ∼20-fold, making it the most efficient amine-peroxide redox initiator to date. The application of amines with superior kinetics such as MPP in APRP could greatly accelerate existing industrial processes, facilitate new industrial manufacturing methods, and improve biocompatibility in biomedical applications conducted with reduced initiator concentrations yet higher overall efficiency.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Aaron M Holder
- National Renewable Energy Laboratory, Golden , Colorado 80401 , United States
| | - Jeffrey W Stansbury
- School of Dental Medicine, Craniofacial Biology , University of Colorado Denver , Aurora , Colorado 80045 , United States
| | - Charles B Musgrave
- National Renewable Energy Laboratory, Golden , Colorado 80401 , United States
| |
Collapse
|
22
|
Panpisut P, Khan MA, Main K, Arshad M, Xia W, Petridis H, Young AM. Polymerization kinetics stability, volumetric changes, apatite precipitation, strontium release and fatigue of novel bone composites for vertebroplasty. PLoS One 2019; 14:e0207965. [PMID: 30883564 PMCID: PMC6422261 DOI: 10.1371/journal.pone.0207965] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 02/26/2019] [Indexed: 12/19/2022] Open
Abstract
PURPOSE The aim was to determine effects of diluent monomer and monocalcium phosphate monohydrate (MCPM) on polymerization kinetics and volumetric stability, apatite precipitation, strontium release and fatigue of novel dual-paste composites for vertebroplasty. MATERIALS AND METHODS Polypropylene (PPGDMA) or triethylene (TEGDMA) glycol dimethacrylates (25 wt%) diluents were combined with urethane dimethacrylate (70 wt%) and hydroxyethyl methacrylate (5 wt%). 70 wt% filler containing glass particles, glass fibers (20 wt%) and polylysine (5 wt%) was added. Benzoyl peroxide and MCPM (10 or 20 wt%) or N-tolyglycine glycidyl methacrylate and tristrontium phosphate (15 wt%) were included to give initiator or activator pastes. Commercial PMMA (Simplex) and bone composite (Cortoss) were used for comparison. ATR-FTIR was used to determine thermal activated polymerization kinetics of initiator pastes at 50-80°C. Paste stability, following storage at 4-37°C, was assessed visually or through mixed paste polymerization kinetics at 25°C. Polymerization shrinkage and heat generation were calculated from final monomer conversions. Subsequent expansion and surface apatite precipitation in simulated body fluid (SBF) were assessed gravimetrically and via SEM. Strontium release into water was assessed using ICP-MS. Biaxial flexural strength (BFS) and fatigue properties were determined at 37°C after 4 weeks in SBF. RESULTS Polymerization profiles all exhibited an inhibition time before polymerization as predicted by free radical polymerization mechanisms. Initiator paste inhibition times and maximum reaction rates were described well by Arrhenius plots. Plot extrapolation, however, underestimated lower temperature paste stability. Replacement of TEGDMA by PPGDMA, enhanced paste stability, final monomer conversion, water-sorption induced expansion and strontium release but reduced polymerization shrinkage and heat generation. Increasing MCPM level enhanced volume expansion, surface apatite precipitation and strontium release. Although the experimental composite flexural strengths were lower compared to those of commercially available Simplex, the extrapolated low load fatigue lives of all materials were comparable. CONCLUSIONS Increased inhibition times at high temperature give longer predicted shelf-life whilst stability of mixed paste inhibition times is important for consistent clinical application. Increased volumetric stability, strontium release and apatite formation should encourage bone integration. Replacing TEGDMA by PPGDMA and increasing MCPM could therefore increase suitability of the above novel bone composites for vertebroplasty. Long fatigue lives of the composites may also ensure long-term durability of the materials.
Collapse
Affiliation(s)
- Piyaphong Panpisut
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, United Kingdom
| | - Muhammad Adnan Khan
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, United Kingdom
| | - Kirsty Main
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, United Kingdom
| | - Mayda Arshad
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, United Kingdom
| | - Wendy Xia
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, United Kingdom
| | - Haralampos Petridis
- Department of Restorative Dentistry, Unit of Prosthodontics, UCL Eastman Dental Institute, London, United Kingdom
| | - Anne Margaret Young
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, United Kingdom
| |
Collapse
|
23
|
Zhang P, Yuan M, Xu C, Jia K, Zhu Y, Tang H. Alkyl halide/tertiary amine as novel initiators for free radical polymerizations of methyl methacrylate, methyl acrylate and styrene. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2019.1581577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Panpan Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, P. R. China
| | - Ming Yuan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, P. R. China
| | - Cheng Xu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, P. R. China
| | - Kan Jia
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, P. R. China
| | - Yifeng Zhu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, P. R. China
| | - Huadong Tang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, P. R. China
| |
Collapse
|
24
|
Suzuki Y, Cousins DS, Shinagawa Y, Bell RT, Matsumoto A, Stebner AP. Phase separation during bulk polymerization of methyl methacrylate. Polym J 2018. [DOI: 10.1038/s41428-018-0142-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
25
|
Par M, Tarle Z, Hickel R, Ilie N. Polymerization kinetics of experimental bioactive composites containing bioactive glass. J Dent 2018; 76:83-88. [PMID: 29935997 DOI: 10.1016/j.jdent.2018.06.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 05/14/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022] Open
Abstract
OBJECTIVES To investigate the polymerization kinetics and the degree of conversion (DC) of experimental resin composites with varying amount of bioactive glass 45S5 (BG). METHODS Experimental resin composites based on a photo-curable Bis-GMA/TEGDMA resin system were prepared. The composite series contained 0, 5, 10, 20, and 40 wt% of BG and reinforcing fillers up to the total filler amount of 70 wt%. Composite specimens were light cured with 1219 mW/cm2 for 20 or 40 s and their DC was monitored during 5 min at the data collection rate of 2 s-1 using attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). RESULTS The 5-min DC values for experimental composites were in the range of 42.4-55.9% and 47.3-57.9% for curing times of 20 and 40 s, respectively. The differences in the 5-min DC between curing times of 20 s or 40 s became more pronounced in materials with higher BG amount. Within both curing times, a decreasing trend of the 5-min DC values was observed with the increasing percentage of BG fillers. The maximum polymerization rate also decreased consistently with the increasing BG amount. CONCLUSIONS Unsilanized BG fillers showed a dose-dependent inhibitory effect on polymerization rate and the DC. Extending the curing time from 20 to 40 s showed a limited potential to improve the DC of composites with higher BG amount. SIGNIFICANCE The observed inhibitory effect of BG fillers on the polymerization of resin composites may have a negative influence on mechanical properties and biocompatibility.
Collapse
Affiliation(s)
- Matej Par
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gunduliceva 5, Zagreb, Croatia.
| | - Zrinka Tarle
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gunduliceva 5, Zagreb, Croatia.
| | - Reinhard Hickel
- Department of Restorative Dentistry, Periodontology and Pedodontics, Ludwig-Maximilians-University of Munich, Goethestr. 70, Munich, Germany.
| | - Nicoleta Ilie
- Department of Restorative Dentistry, Periodontology and Pedodontics, Ludwig-Maximilians-University of Munich, Goethestr. 70, Munich, Germany.
| |
Collapse
|
26
|
Zakharina MY, Fedoseev VB, Chechet YV, Chesnokov SA, Shaplov AS. Effect of Viscosity of Dimethacrylate Ester-Based Compositions on the Kinetics of Their Photopolymerization in Presence of o-Quinone Photoinitiators. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090417060100] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
27
|
Vicentin BLS, Netto AM, Dall’Antonia LH, Di Mauro E, Blümich B. Real-time polymerization monitoring in a dual-cured resin cement by magnetic resonance. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2007-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
28
|
An experimental and theoretical study of butyl methacrylatein situradical polymerization kinetics in the presence of graphene oxide nanoadditive. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28512] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
29
|
Redox initiated aqueous radical polymerization of N,N-dimethylacrylamide in the presence of poly(tertiary amine) as a multifunctional reducing agent. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1892-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
30
|
Verros GD, Achilias DS. Toward the development of a mathematical model for the bulk in situ radical polymerization of methyl methacrylate in the presence of nano-additives. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22539] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- George D. Verros
- Laboratory of Organic Chemical Technology; Department of Chemistry; Aristotle University of Thessaloniki; 541 24 Thessaloniki Greece
| | - Dimitris S. Achilias
- Laboratory of Organic Chemical Technology; Department of Chemistry; Aristotle University of Thessaloniki; 541 24 Thessaloniki Greece
| |
Collapse
|
31
|
Wang X, Sun X, Zhai G. Aqueous radical polymerization of N,N-dimethylacrylamide redox-initiated by aerobically catalytic oxidation of water-soluble tertiary amines. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1437-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
32
|
Zoller A, Gigmes D, Guillaneuf Y. Simulation of radical polymerization of methyl methacrylate at room temperature using a tertiary amine/BPO initiating system. Polym Chem 2015. [DOI: 10.1039/c5py00229j] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A model was developed for the polymerization of methyl methacrylate at room temperature. The model used both free volume and empirical models for propagation, termination and several side reactions.
Collapse
Affiliation(s)
- Alexander Zoller
- Aix-Marseille Université
- CNRS
- Institut de Chimie Radicalaire
- F-13397 Marseille
- France
| | - Didier Gigmes
- Aix-Marseille Université
- CNRS
- Institut de Chimie Radicalaire
- F-13397 Marseille
- France
| | - Yohann Guillaneuf
- Aix-Marseille Université
- CNRS
- Institut de Chimie Radicalaire
- F-13397 Marseille
- France
| |
Collapse
|
33
|
Siddiqui MN, Redhwi HH, Verros GD, Achilias DS. Evaluating the Role of Nanomontmorillonite in Bulk in Situ Radical Polymerization Kinetics of Butyl Methacrylate through a Simulation Model. Ind Eng Chem Res 2014. [DOI: 10.1021/ie501360j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | | | - George D. Verros
- Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - Dimitris S. Achilias
- Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| |
Collapse
|
34
|
Ziółkowski B, Ates Z, Gallagher S, Byrne R, Heise A, Fraser KJ, Diamond D. Mechanical Properties and UV Curing Behavior of Poly(N
-Isopropylacrylamide) in Phosphonium-Based Ionic Liquids. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201200616] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
35
|
Yousefi AM, Love BJ. Probing the temperature sensitivity of induction time in latent cure epoxy resins. POLYM INT 2012. [DOI: 10.1002/pi.4439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Amy M Yousefi
- Bioengineering, Chemical and Paper Engineering Department; Miami University; Oxford OH 45056 USA
| | - Brian J Love
- Department of Materials Science and Engineering; University of Michigan; Ann Arbor MI 48104 USA
- Department of Biomedical Engineering; University of Michigan; Ann Arbor MI 48104 USA
- Department of Biologic and Materials Sciences (Dentistry); University of Michigan; Ann Arbor MI 48104 USA
| |
Collapse
|
36
|
Li L, Wu L, Bu Z, Gong C, Li BG, Hungenberg KD. Graft Copolymerization of Styrene and Acrylonitrile in the Presence of Poly(propylene glycol): Kinetics and Modeling. MACROMOL REACT ENG 2012. [DOI: 10.1002/mren.201200012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
37
|
Dynamic mechanical properties of dental nanofilled light-cured resin composites: Effect of food-simulating liquids. J Mech Behav Biomed Mater 2012; 10:87-96. [PMID: 22520421 DOI: 10.1016/j.jmbbm.2012.02.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 02/08/2012] [Accepted: 02/09/2012] [Indexed: 11/21/2022]
|
38
|
Sideridou ID, Vouvoudi EC, Bourdouni KA. Study of physicochemical properties of two current commercial dental self-curing resin composites. J Appl Polym Sci 2012. [DOI: 10.1002/app.36990] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
39
|
Cramer N, Stansbury J, Bowman C. Recent advances and developments in composite dental restorative materials. J Dent Res 2011; 90:402-16. [PMID: 20924063 PMCID: PMC3144137 DOI: 10.1177/0022034510381263] [Citation(s) in RCA: 361] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2010] [Revised: 07/01/2010] [Accepted: 07/15/2010] [Indexed: 11/16/2022] Open
Abstract
Composite dental restorations represent a unique class of biomaterials with severe restrictions on biocompatibility, curing behavior, esthetics, and ultimate material properties. These materials are presently limited by shrinkage and polymerization-induced shrinkage stress, limited toughness, the presence of unreacted monomer that remains following the polymerization, and several other factors. Fortunately, these materials have been the focus of a great deal of research in recent years with the goal of improving restoration performance by changing the initiation system, monomers, and fillers and their coupling agents, and by developing novel polymerization strategies. Here, we review the general characteristics of the polymerization reaction and recent approaches that have been taken to improve composite restorative performance.
Collapse
Affiliation(s)
- N.B. Cramer
- Dept. of Chemical & Biological Engineering, University of Colorado, UCB 424, Boulder, CO 80309, USA
| | - J.W. Stansbury
- Dept. of Chemical & Biological Engineering, University of Colorado, UCB 424, Boulder, CO 80309, USA
- Dept. of Craniofacial Biology, School of Dental Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - C.N. Bowman
- Dept. of Chemical & Biological Engineering, University of Colorado, UCB 424, Boulder, CO 80309, USA
- Dept. of Craniofacial Biology, School of Dental Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| |
Collapse
|
40
|
Wang K, Yang D, Xiao M, Chen X, Lu F, Nie J. Sesamin as a co-initiator for unfilled dental restorations. Acta Biomater 2009; 5:2508-17. [PMID: 19349221 DOI: 10.1016/j.actbio.2009.03.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Revised: 03/08/2009] [Accepted: 03/09/2009] [Indexed: 11/15/2022]
Abstract
A natural component, sesamin (SA), was used to replace conventional amine as co-initiator for dental composite. A combination of camphorquinone (CQ) and SA was employed to initiate the photopolymerization of 2-2-bis[4-(2-hydroxy-3-methacryloxyprop-1-oxy)phenyl] propane/triethylene glycol dimethacrylate (70/30wt.%). The kinetics was recorded by real-time Fourier transform infrared spectroscopy. The mechanical properties were measured by dynamic mechanical analysis, the cell toxicity was investigated by MTT assay and a mixture of CQ and ethyl 4-N,N-dimethylaminobenzoate (EDMAB) was used as control in the same photocuring condition. The results indicated that the addition of SA as co-initiator greatly improved the rate of polymerization and final double-bond conversion (DC) when compared with the system initiated by CQ alone. Compared with EDMAB, the final DC of the CQ/SA system (71%) was slightly lower than that of CQ/EDMAB (76%); SA resulted in approximately the same storage modulus at around 37 degrees C, but a slightly higher glass transition temperature. SA produced lower yellowing effect and good in vitro biocompatibility. The water sorption and solubility for two mixtures were very close and within the range of the ISO 4049 specification. These results suggest that SA is an effective alternative co-initiator to conventional amine. The natural compound characteristics of SA make it more promising than amine in dental resin formulations.
Collapse
Affiliation(s)
- Kemin Wang
- State Key Laboratory of Chemical Resource Engineering, Key Lab of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | | | | | | | | | | |
Collapse
|
41
|
Wang K, Yin R, Zhang X, Shi S, Nie J. Synthesis and photopolymerization of piperonylamine derivatives as a polymerizable cyclic acetals co-initiator for light-cured unfilled dental resins. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
42
|
Ansong OE, Jansen S, Wei Y, Pomrink G, Lu H, Patel A, Li S. Accelerated controlled radical polymerization of methacrylates. POLYM INT 2008. [DOI: 10.1002/pi.2492] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
43
|
Love BJ, Ruinet FP, Teyssandier F. Chemorheology of photopolymerizable acrylates using a modified Boltzmann sigmoidal model. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/polb.21563] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
44
|
Ansong OE, Jansen S, Wei Y, Pomrink G, Li S, Patel A. Accelerant-promoted free radical polymerization of methacrylates by stabilized nitroxide unimolecular initiators: synthesis and characterization. POLYM INT 2008. [DOI: 10.1002/pi.2414] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
45
|
Schroeder WF, Cook WD, Vallo CI. Photopolymerization of N,N-dimethylaminobenzyl alcohol as amine co-initiator for light-cured dental resins. Dent Mater 2008; 24:686-93. [PMID: 17804051 DOI: 10.1016/j.dental.2007.06.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2006] [Revised: 06/12/2007] [Accepted: 06/18/2007] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The present study was carried out in order to assess the suitability of N,N-dimethylaminobenzyl alcohol (DMOH) as co-initiator of camphorquinone (CQ) and 1-phenyl-1,2-propanedione (PPD) in light-cured dental resins. METHODS DMOH was synthesized and used as co-initiator for the photopolymerization of a model resin based on {2,2-bis[4-(2-hydroxy-3-methacryloxyprop-1-oxy)phenyl]propane} (Bis-GMA)/triethylene glycol dimethacrylate (TEGDMA). Experimental formulations containing CQ or PPD in combination with DMOH at different concentrations were studied. The photopolymerization was carried out by means of a commercial light-emitting diode (LED) curing unit. The evolution of double bonds consumption versus irradiation time was followed by near-infrared spectroscopy (NIR). The photon absorption efficiency (PAE) of the photopolymerization process was calculated from the spectral distribution of the LED unit and the molar absorption coefficient distributions of PPD and CQ. RESULTS DMOH is an efficient photoreducer of CQ and PPD resulting in higher polymerization rate and higher double bond conversion compared with dimethylaminoethylmethacrylate. The PAE for PPD was higher than that for CQ. However, the polymerization initiated by PPD progressed at a lower rate and exhibited lower values of final conversion compared with the resins containing CQ. This observation indicates that the lower polymerization rate of the PPD/amine system should be explained in terms of the mechanism of generating primary radicals by PPD, which is less efficient compared with CQ. SIGNIFICANCE The DMOH/benzoyl peroxide redox system, has recently been proposed as a more biocompatible accelerator for the polymerization of bone cements based on poly(methyl methacrylate), because cytotoxity tests have demonstrated that DMOH possesses better biocompatibility properties compared with traditional tertiary amines. The results obtained in the present study reveal the suitability of the CQ/DMOH initiator system for the polymerization of light-cured dental composites.
Collapse
Affiliation(s)
- Walter F Schroeder
- Institute of Materials Science and Technology (INTEMA), Universidad Nacional de Mar del Plata-National Research Council (CONICET), Av. Juan B. Justo 4302, 7600 Mar del Plata, Argentina
| | | | | |
Collapse
|
46
|
Sideridou ID, Achilias DS, Kostidou NC. Copolymerization kinetics of dental dimethacrylate resins initiated by a benzoyl peroxide/amine redox system. J Appl Polym Sci 2008. [DOI: 10.1002/app.28093] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
47
|
Achilias DS. A Review of Modeling of Diffusion Controlled Polymerization Reactions. MACROMOL THEOR SIMUL 2007. [DOI: 10.1002/mats.200700003] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
48
|
Wu G, Shi S, Xiao P, Nie J. Synthesis and characterization of aliphatic amine co-initiator with different chain length for photopolymerization of dimethacrylate. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2006.12.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
49
|
Sideridou ID, Papanastasiou GE. Sorption of binary liquid mixtures in methacrylate-based biomaterials; Simultaneous determination of the diffusion coefficients and the uptake fraction at equilibrium of the components of ethanol-water mixtures by a new iterative method. J Appl Polym Sci 2007. [DOI: 10.1002/app.26672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
50
|
Sideridou ID, Achilias DS, Karava O. Reactivity of Benzoyl Peroxide/Amine System as an Initiator for the Free Radical Polymerization of Dental and Orthopaedic Dimethacrylate Monomers: Effect of the Amine and Monomer Chemical Structure. Macromolecules 2006. [DOI: 10.1021/ma0521351] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Irini D. Sideridou
- Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Dimitris S. Achilias
- Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Olga Karava
- Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| |
Collapse
|