Journal article
Measurement of Water Sorption by Resin Composite Adhesives with Near-Infrared Spectroscopy
Journal of dental research, Vol.71(3), pp.438-442
03/1992
DOI: 10.1177/00220345920710030301
PMID: 1573074
Abstract
Spectroscopic methodology was used to follow the water uptake of disks of two resin composite luting agents during long-term storage. Fourier-transform near-infrared (FT-NIR) spectroscopy was used for collection of spectra over the 4200-6500 cm -1 spectral region. The 5200-cm-1 absorption band of water was monitored initially, at 24 h, seven days, two weeks, and then monthly over a period of 12 months. The disks were stored in water, air, and desiccated conditions. Disks were also subjected to two alternate cycles (two weeks each) of hydration and desiccation. A spectral manipulation program was used for quantitation of the area under the water absorbance band.
Area ratios demonstrated similar water-uptake patterns for the two adhesives. Rapid water uptake was seen within the first two weeks of storage. Alternate hydration and desiccation of the samples showed that water uptake by the filler/polymer network was partially reversible. The desiccant was unable to remove all the water from the samples, which indicated that some water was tightly held within the sample matrix. FT-NIR spectroscopy is recommended as an effective method for study of the equilibration of resin composites in water.
Details
- Title: Subtitle
- Measurement of Water Sorption by Resin Composite Adhesives with Near-Infrared Spectroscopy
- Creators
- A.M Diaz-Arnold - Department of Family Dentistry, College of Dentistry, University of Iowa, Iowa City, Iowa 52242M.A Arnold - Department of Chemistry, College of Dentistry, University of Iowa, Iowa City, Iowa 52242V.D Williams - Department of Family Dentistry, College of Dentistry, University of Iowa, Iowa City, Iowa 52242
- Resource Type
- Journal article
- Publication Details
- Journal of dental research, Vol.71(3), pp.438-442
- Publisher
- SAGE Publications
- DOI
- 10.1177/00220345920710030301
- PMID
- 1573074
- ISSN
- 0022-0345
- eISSN
- 1544-0591
- Language
- English
- Date published
- 03/1992
- Academic Unit
- Center for Biocatalysis and Bioprocessing; Fraternal Order of Eagles Diabetes Research Center; Family Dentistry; Chemistry
- Record Identifier
- 9984216594502771
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