HCFC225s as carrier solvents in size exclusion chromatography.
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Accession number;99A0711833
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| Title;HCFC225s as carrier solvents in size exclusion chromatography. |
| Author;
ISEMURA TSUGUHIDE
(Asahi Glass Co., Ltd., Res. Lab.)
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Journal Title;Fusso Kagaku Toronkai Koen Yoshishu
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Journal Code:F0135B
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ISSN:
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VOL.22nd;NO.;PAGE.44-45(1998)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;HCFC225s (HCFC225ca: CF3CF2CHCCl2, HCFC225cb: CF2ClCF2CFHCl) are demonstrated to be superior mobile phase carrier solvent for size exclusion chromatography (SEC). HCFC225s have inherent excellent properties such as, low toxicity, high purity, low cost, low Global Warming Potential, and low Ozone Depletion Potential. In addition, solubility of polymethylmethacrylate (PMMA) gives HCFC225 a distinct advantage over commonly used fluorine containing solvents such as CFC113, perfluoroalkanes, fluorine containing ethers, because calibration curve for SEC measurement can be obtained by using commercial monodispersive PMMA. Successful measurement of average molecular weight and molecular weight distribution of several fluorine containing polymers such as perfluoropolyether, poly(perfluoroalkyl ethyl acrylate), are demonstrated. (author abst.) |
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