Adsorption of polyethylene from thermodynamically good solvents on a zeolite stationary phase

✍ Scribed by Tibor Macko; Joeri F. Denayer; Harald Pasch; Gino V. Baron

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 512 KB
• Volume: 26
• Category: Article
• ISSN: 1615-9306
• DOI: 10.1002/jssc.200301576

✦ Synopsis

Abstract

Adsorption of linear polyethylene and isotactic polypropylene on columns packed with zeolites ZSM‐5, Y, and silicalite was studied using high‐temperature liquid phase chromatography. Linear polyethylene was fully retained on a column packed with ZSM‐5 zeolite from non‐polar solvents, such as 1,1,2,2‐tetrachloroethane and 1,3,5‐trimethylbenzene at a temperature of 140°C. Partial adsorption on ZSM‐5 zeolite was found for polyethylene in 1,2,4‐trichlorobenzene and on silicalite from 1,2,4‐trichlorobenzene and 1,3,5‐trimethylbenzene. On the other hand, adsorption of polyethylene was not found from polar liquids, such as 2‐ethylhexyl acetate, cyclohexyl acetate, and cyclohexanone. Isotactic polypropylene was not adsorbed on any tested sorbent.