Abstract
Crosslinked polymethylphenylsiloxanes that are suitable as adsorbents for gas-solid chromatography have been prepared. These new materials are characterized and evaluated as chromatographic supports. Their chromatographic properties are compared to OV-17, a linear polymethylphenylsiloxane, often used as a liquid phase in gas-liquid chromatography. Scanning electron micrographs show that the materials resemble agglomerates of tiny spheres. The materials have surface areas around 5 m 2/g and are thermally stable up to 350°. Small, polar compounds are eluted very early in columns prepared with these adsorbents in a manner similar to macroporous polymers like the Porapaks. Separations of chlorinated benzenes and phenols at temperatures up to 270° are shown.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
