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Updated: Jun 26, 2026

11:38
In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework
Published on: February 1, 2020
Fourier transform infrared study of the dissolution mechanism of poly(methyl methacrylate) in CO2-expanded ethanol
Kiyoshi Matsuyama1, Kenji Mishima
1Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakua, Jonan-ku, Fukuoka 814-0180, Japan. mtym@fukuoka-u.jp
Abstract:
Both CO(2) and ethanol are nonsolvents for poly(methyl methacrylate) (PMMA) at 303 K, but PMMA dissolves in CO(2)-expanded ethanol (red spectrum, see figure). The dissolution process consists of swelling of the PMMA by the CO(2), which allows the ethanol to penetrate the PMMA and interact with the polymer through carbonyl-hydroxyl hydrogen bonds to separate the polymer chains.

