Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 544, Issue -, Pages 243-251Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2017.09.031
Keywords
Cellulose acetate propionate; Polymerizable ionic liquids; Hansen's solubility parameters; Plasticization; Hydrophilic pervaporation
Categories
Funding
- Polish National Science Centre [DEC-2015/18/M/ST5/00635]
- Hubert Curien's Partnership Program Polonium [35501/2016]
- French Government Scholarship [848642E, 878205J]
Ask authors/readers for more resources
The new type of efficient pervaporative separation hybrid materials based on cellulose acetate propionate (CAP) and doped with 1-methyl-3-(4-vinylbenzyl)-1H-imidazol-3-ium chloride polymerizable ionic liquid (PIL) monomers (12.3-44.4 wt%) were elaborated for dehydration of propan-2-ol. Broad material and physicochemical characterization of membranes was performed including assessment of physicochemical, equilibrium, transport, and separation properties. Incorporation of PIL results in the plasticization of CAP based membranes. Additionally, with increasing loading of PIL from 12.3 to 44.4 wt% values of thickness-normalized Pervaporation Separation Index (PSIN) increase 1.6-2.4 times comparing to unloaded membrane (pure CAP). The distance parameters calculated on the base of the Hansen's solubility parameters were additionally employed to interpret swelling and pervaporative properties of membranes as well as to discuss interactions between solvents and prepared membranes. Lower value of distance parameter between pristine CAP and ethanol corresponds to the highest molar swelling degree of CAP based membranes. Swelling of CAP-PIL membranes in contact with water, ethanol, and propan-2-ol increased with of the increasing PIL content due to the hydrophilic character of ionic liquid. The gathered data provided insight into the potential applicability of the novel hybrid separation materials for pervaporative separation of liquid-liquid mixtures.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available