Physical Properties for Supercritical Fluid-Aided Polymer Processing

Polymer Additives: Supercritical Fluid Chromatography

glichkeiten. Angewandte Chemie 105: 659; Angewandte Chemie, International Edition English 32: 629. Francuskiewicz F (1994) Polymer Fractionation (Springer Lab Manual). Heidelberg: Springer Verlag. GloK ckner G (1987) Polymer Characterization by Liquid Chromatography. Amsterdam: Elsevier. GloK ckner G (1991) Gradient HPLC of copolymers and chromatographic cross fractionation. Berlin: Springer Ve...

Polymer Processing with Supercritical Fluids

Supercritical fluids have a unique and valuable potential for the enhanced processing of many materials. This review describes research in the applications of supercritical fluids to polymer processing. The ability of supercritical carbon dioxide to swell and plasticize polymers is crucial to the impregnation, extraction, and modification of polymeric materials. This plasticization also reduces...

Supercritical Fluid Processing of Polymers

We have applied in situ FTIR, ATR-IR and photoacoustic spectroscopy to identify for the first time specific molecular interactions between CO2 and polymers that may be responsible for the plasticization of glassy polymers. The changes in IR spectra of CO2 incorporated into various polymers indicate a specific interaction between CO2 and polymer functional groups. Increased polymer segmental mob...

Supercritical Fluid Extraction+supercritical Fluid Chromatography

high pressures also requires special equipment. In summary, both RESS crystallization and SAS crystallization appear to be promising methods for generating supersaturation and therefore represent alternatives to conventional crystallization. Such alternatives may prove attractive in applications such as polymer and pharmaceutical processing, or in particle design for drug delivery. It is possib...

The use of supercritical fluid extraction technology in food processing