Influence of Microwave Heating on the Polymerization Kinetics and Application Properties of the PMMA Dental Materials
Abstract
The effects of heating mode (conventional isothermal heating (CIH) and microwave isothermal heating (MWIH) on the kinetics of polymerization and the properties important for the application (residual monomer, hardness, and water absorption) of three commercial poly(methyl methacrylate) (PMMA) base dental materials were investigated. The degree of monomer conversion was determined by infrared spectrometry. The hardness of the polymerized samples was measured by shore D method, whereas the water absorption was measured gravimetrically. Kinetics models for polymerizations using different heating modes were determined by model fitting method. The rate of the MWIH polymerization was eight times higher compared with the CIH polymerization. The CIH polymerization is found to be the phase-boundary controlled reaction for which the rate of contracting volume is the rate limiting step, whereas MWIH polymerization is found to be the first-order reaction and the monomer concentration in the polyme...rization mixture is the rate limiting step. The samples of PMMA base dental materials synthesized by MWIH polymerization exhibit better application properties (hardness and water absorption).
Keywords:
dental polymers / hardness / infrared spectroscopy / kinetics(polym)Source:
Journal of Applied Polymer Science, 2011, 119, 6, 3598-3606Publisher:
- Wiley, Hoboken
Funding / projects:
- Sinteza i karakterizacija polimera i polimernih (nano)kompozita definisane molekulske i nadmolekulske strukture (RS-MESTD-MPN2006-2010-142023)
- Fizička hemija dinamičkih stanja i struktura neravnotežnih sistema - od monotone do oscilatorne evolucije i haosa (RS-MESTD-MPN2006-2010-142025)
- Sinteza i karakterizacija polimera i polimernih (nano)kompozita definisane molekulske i nadmolekulske strukture (RS-MESTD-MPN2006-2010-142023)
DOI: 10.1002/app.33041
ISSN: 0021-8995
WoS: 000285312800057
Scopus: 2-s2.0-78649938492
Institution/Community
Inovacioni centarTY - JOUR AU - Spasojević, Pavle AU - Adnađević, Borivoj AU - Veličković, Sava AU - Jovanović, Jelena PY - 2011 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1926 AB - The effects of heating mode (conventional isothermal heating (CIH) and microwave isothermal heating (MWIH) on the kinetics of polymerization and the properties important for the application (residual monomer, hardness, and water absorption) of three commercial poly(methyl methacrylate) (PMMA) base dental materials were investigated. The degree of monomer conversion was determined by infrared spectrometry. The hardness of the polymerized samples was measured by shore D method, whereas the water absorption was measured gravimetrically. Kinetics models for polymerizations using different heating modes were determined by model fitting method. The rate of the MWIH polymerization was eight times higher compared with the CIH polymerization. The CIH polymerization is found to be the phase-boundary controlled reaction for which the rate of contracting volume is the rate limiting step, whereas MWIH polymerization is found to be the first-order reaction and the monomer concentration in the polymerization mixture is the rate limiting step. The samples of PMMA base dental materials synthesized by MWIH polymerization exhibit better application properties (hardness and water absorption). PB - Wiley, Hoboken T2 - Journal of Applied Polymer Science T1 - Influence of Microwave Heating on the Polymerization Kinetics and Application Properties of the PMMA Dental Materials EP - 3606 IS - 6 SP - 3598 VL - 119 DO - 10.1002/app.33041 ER -
@article{ author = "Spasojević, Pavle and Adnađević, Borivoj and Veličković, Sava and Jovanović, Jelena", year = "2011", abstract = "The effects of heating mode (conventional isothermal heating (CIH) and microwave isothermal heating (MWIH) on the kinetics of polymerization and the properties important for the application (residual monomer, hardness, and water absorption) of three commercial poly(methyl methacrylate) (PMMA) base dental materials were investigated. The degree of monomer conversion was determined by infrared spectrometry. The hardness of the polymerized samples was measured by shore D method, whereas the water absorption was measured gravimetrically. Kinetics models for polymerizations using different heating modes were determined by model fitting method. The rate of the MWIH polymerization was eight times higher compared with the CIH polymerization. The CIH polymerization is found to be the phase-boundary controlled reaction for which the rate of contracting volume is the rate limiting step, whereas MWIH polymerization is found to be the first-order reaction and the monomer concentration in the polymerization mixture is the rate limiting step. The samples of PMMA base dental materials synthesized by MWIH polymerization exhibit better application properties (hardness and water absorption).", publisher = "Wiley, Hoboken", journal = "Journal of Applied Polymer Science", title = "Influence of Microwave Heating on the Polymerization Kinetics and Application Properties of the PMMA Dental Materials", pages = "3606-3598", number = "6", volume = "119", doi = "10.1002/app.33041" }
Spasojević, P., Adnađević, B., Veličković, S.,& Jovanović, J.. (2011). Influence of Microwave Heating on the Polymerization Kinetics and Application Properties of the PMMA Dental Materials. in Journal of Applied Polymer Science Wiley, Hoboken., 119(6), 3598-3606. https://doi.org/10.1002/app.33041
Spasojević P, Adnađević B, Veličković S, Jovanović J. Influence of Microwave Heating on the Polymerization Kinetics and Application Properties of the PMMA Dental Materials. in Journal of Applied Polymer Science. 2011;119(6):3598-3606. doi:10.1002/app.33041 .
Spasojević, Pavle, Adnađević, Borivoj, Veličković, Sava, Jovanović, Jelena, "Influence of Microwave Heating on the Polymerization Kinetics and Application Properties of the PMMA Dental Materials" in Journal of Applied Polymer Science, 119, no. 6 (2011):3598-3606, https://doi.org/10.1002/app.33041 . .