@article {Duarte2005a,
	title = {{A comparison between gravimetric and in situ spectroscopic methods to measure the sorption of CO{\textless}inf{\textgreater}2{\textless}/inf{\textgreater} in a biocompatible polymer}},
	journal = {Journal of Supercritical Fluids},
	volume = {36},
	number = {2},
	year = {2005},
	note = {n/a},
	abstract = {<p>In situ ATR-IR spectroscopy was used to simultaneously measure the sorption and swelling of carbon dioxide at high pressures in a biocompatible acrylate copolymer poly(methylmethacrylate-co-ethylhexylacrylate-co- ethyleneglycoldimethacrylate), P(MMA-EHA-EGDMA). The $ν$ 3 band of CO 2 dissolved in the polymer (at 2335 cm -1 ) was used to calculate the sorption data and the polymer swelling was determined by analyzing the changes in the absorbance of the $ν$(CO) band (at 1730 cm -1 ) of the polymer. Transmission spectroscopy in the near-IR region was also used to study the sorption of CO 2 in the polymer using combinational and overtone bands. The experiments were carried out in a pressure range of 2.0-12.0 MPa and in a temperature range of 27-40 {\textdegree}C. The data for CO 2 sorption in this polymer obtained by in situ spectroscopic methods have been compared to the data obtained by the gravimetric technique. {\textcopyright} 2005 Elsevier B.V. All rights reserved.</p>
},
	keywords = {ATR-FTIR, CO sorption 2, Near-IR spectroscopy, Polymer swelling},
	issn = {08968446},
	doi = {10.1016/j.supflu.2005.04.003},
	author = {Duarte, A.R.C. and Anderson, L.E. and Duarte, C.M.M. and Kazarian, S.G.}
}
