Publication: Bound carbonyls in PMMA adsorbed on silica using transmission FTIR
4
Issued Date
2006-08-01
Resource Type
ISSN
08876266
Other identifier(s)
2-s2.0-33747153386
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Polymer Science, Part B: Polymer Physics. Vol.44, No.15 (2006), 2071-2078
Suggested Citation
Suriyaphongse Kulkeratiyut, Suntree Kulkeratiyut, Frank D. Blum Bound carbonyls in PMMA adsorbed on silica using transmission FTIR. Journal of Polymer Science, Part B: Polymer Physics. Vol.44, No.15 (2006), 2071-2078. doi:10.1002/polb.20871 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/23382
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Bound carbonyls in PMMA adsorbed on silica using transmission FTIR
Other Contributor(s)
Abstract
The fraction of directly-bound carbonyls of surface-adsorbed poly(methyl methacrylate) (PMMA) was determined using transmission Fourier-transform infrared (FTIR) spectroscopy. The small size of the silica used allowed these measurements to be made directly in the transmission mode from dried casts deposited on KBr salt plates. Curve fitting of the carbonyl-stretching region allowed the estimation of both the relative amounts and also the relative ratio of the absorption coefficients for the free and bound carbonyls. The bound-carbonyl fractions were found to vary smoothly from 0.3 to 0.1 for adsorbed amounts from 0.5 to 1.8 mg of PMMA/m 2. The bound fractions depended primarily on the adsorbed amount of polymer. Only very small, perhaps even negligible, direct effects of the solvent composition (toluene vs. benzene/acetonitrile) or molecular mass (32 to 420 kg/mol) were observed. © 2006 Wiley Periodicals, Inc.