Preparation, characterization and thermal studies of polymer inclusion cellulose acetate membrane with calix[4]resorcinarenes as carriers

Autor:	Bouzid Guedioura, Safouane M. Hamdi, Maamar Hamdi, Baya Boutemeur, Nadjib Benosmane
Rok vydání:	2010
Předmět:	chemistry.chemical_classification Thermogravimetric analysis Aqueous solution Facilitated diffusion Plasticizer Bioengineering Polymer Membrane transport Cellulose acetate Biomaterials chemistry.chemical_compound Membrane chemistry Mechanics of Materials Polymer chemistry
Zdroj:	Materials Science and Engineering: C. 30:860-867
ISSN:	0928-4931
DOI:	10.1016/j.msec.2010.03.023
Popis:	A polymer inclusion membrane (PIM) system with cellulose acetate polymer as support and calix[4]resorcinarenes as carriers has been developed. Special attention was paid to PIM characterization using scanning electron microscopy, Fourier-transform infra-red study, X-ray scattering and thermogravimetric analyses. The efficiency of the membrane transport was optimized as a function of pH, stirring speed, aqueous phases and membrane composition. The results suggested that the transport mechanism is a counter-transport of protons, the mechanism was mainly controlled by the diffusion of the complex formed in the membrane core. Analysis of lead(II) transport through these PIMs was performed. It was found that calix[4]resorcinarenes containing membranes were flexible, resistant and heterogeneous without plasticizer addition.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c9b9d7decd5d07ab9de60a94ebba8f40 https://doi.org/10.1016/j.msec.2010.03.023 Zobrazit plný text záznamu Full Text from ScienceDirect