title: Adsorption of polyethylene standards from decalin on liquid chromatography column packings.
abstract: Linear polyethylene and isotactic polypropylene standards were injected into columns which contained MFI (SH-300 and silicalite) or faujasite (CBV-780) type zeolites. 1,2,4-Trichlorobenzene, cyclohexanone, 2-ethyl-hexanol, decalin and tetralin were used as mobile phases at 140 degrees C. It was found that polyethylene is fully retained on zeolite SH-300 when decalin is used as a mobile phase. Moreover, polyethylene is partially retained on zeolite SH-300 from tetralin and from 1,2,4-tichlorobenzene, on silicalite from decalin and in a very small extent on zeolite CBV-780 from decalin. Using all other solvents, polyethylene and polypropylene were not retained in any of the columns tested. This is the first experimental observation of polyethylene adsorption from a solvent on a chromatographic stationary phase.
authors.affiliation: German Institute for Polymers, Schlossgartenstr. 6 D-64289 Darmstadt, Germany. tmacko@dki.tu-darmstadt.de
authors.forename: Tibor
authors.initials: T
authors.lastname: Macko
authors.forename: Harald
authors.initials: H
authors.lastname: Pasch
authors.forename: Joeri F
authors.initials: JF
authors.lastname: Denayer
mesh_terms: D000327:Adsorption; D002853:Chromatography, Liquid / Q000295:instrumentation*; D020959:Polyethylene / Q000592:standards*; D012015:Reference Standards
chemical_list: D020959:Polyethylene