Low-density polyethylene in mixtures of hexane and benzene derivates
-
Alena Randová
,
Lidmila Bartovská
Abstract
Preferential sorption, equilibrium swelling degree, and volume of the swollen membrane in systems low-density polyethylene + hexane + aromatic compound (benzene, methylbenzene, or ethylbenzene) were studied using gravimetric and dilatometric methods at the temperature of 25 °C. Aromatic compounds are preferentially sorbed in low-density polyethylene compared to hexane. Experimental volume changes of the membrane were found to be noticeably different from those calculated on the basis of mass sorption data under the assumption of additivity. This difference points to the existence of the interactions between the polymer and the surrounding liquid mixture. The volume swelling degree curves are close to each other in the whole concentration range of the binary liquid mixture (hexane + aromatics) suggesting that the attractive forces between the polymer chains are the deciding factor limiting the volume expansion of the membrane in all three systems to the same extent.
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© 2010 Institute of Chemistry, Slovak Academy of Sciences
Articles in the same Issue
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Articles in the same Issue
- A deuterium-palladium electrode as a new sensor in non-aqueous solutions: potentiometric titration of weak acids in acetonitrile and benzonitrile
- Chemical variability of Artemisia herba-alba Asso essential oils from East Morocco
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- Direct electrochemistry and electrocatalysis of horseradish peroxidase immobilized in hyaluronic acid and single walled carbon nanotubes composite film
- Biological buffered saline solution as solvent in agar-carbomer hydrogel synthesis
- GC/MS analysis of gaseous degradation products formed during extrusion blow molding process of PE films
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- Polyamidoamine dendrimer and dextran conjugates: preparation, characterization, and in vitro and in vivo evaluation
- Morphological characteristics of modified freeze-dried poly(N-isopropylacrylamide) microspheres studied by optical microscopy, SEM, and DLS
- Photophysical properties of novel ferrocenyl quinoline derivatives with red emission in solutions and polymeric matrices
- Preparation and characterization of hydrogels based on acryloyl end-capped four-arm star-shaped poly(ethylene glycol)-branched-oligo(l-lactide) via Michael-type addition reaction
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- Synthesis and study of some new N-substituted imide derivatives as potential antibacterial agents
- Single crystal X-ray structure and optical properties of anthraquinone-based dyes
- Low-density polyethylene in mixtures of hexane and benzene derivates
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- Rapid synthesis and bioactivities of 3-(nitromethylene)indolin-2-one analogues
- ZnO nanorods catalyzed N-alkylation of piperidin-4-one, 4(3H)-pyrimidone, and ethyl 6-chloro-1,2-dihydro-2-oxo-4-phenylquinoline-3-carboxylate
