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Poly (L - lactic acid) metal organic framework composites. mass transport properties / Dhayalan Elangovan in Industrial & engineering chemistry research, Vol. 50 N° 19 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11136-11142 Titre : Poly (L - lactic acid) metal organic framework composites. mass transport properties Type de document : texte imprimé Auteurs : Dhayalan Elangovan, Auteur ; Udaykumar Nidoni, Auteur ; Isinay E. Yuzay, Auteur Année de publication : 2011 Article en page(s) : pp. 11136-11142 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Transport  properties  Mass  transfer  Composite  material Résumé : Biodegradable multifunctional polymeric membranes based on poly(L-lactic acid), PLLA, and metal―organic framework compounds (MOFs) were developed. PLLA with and without the addition of 5 wt % MOF was melt compounded in a microextruder, and the solubility parameters, water sorption isotherm, and permeability coefficients to oxygen, carbon dioxide, water, ethyl acetate, hexane, and cyclohexane were determined. The sorption capacity ofthe PLLA―MOF composite films increased up to 2-fold at each relative humidity to which it was exposed when compared with the PLLA films. The sorption and desorption curves of the PLLA-MOF films show hysteresis. The presence of MOF in the composite films did not significantly modify the permeability coefficients of the PLLA-MOF films. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24573312 [article] Poly (L - lactic acid) metal organic framework composites. mass transport properties [texte imprimé] / Dhayalan Elangovan, Auteur ; Udaykumar Nidoni, Auteur ; Isinay E. Yuzay, Auteur . - 2011 . - pp. 11136-11142. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11136-11142 Mots-clés : Transport  properties  Mass  transfer  Composite  material Résumé : Biodegradable multifunctional polymeric membranes based on poly(L-lactic acid), PLLA, and metal―organic framework compounds (MOFs) were developed. PLLA with and without the addition of 5 wt % MOF was melt compounded in a microextruder, and the solubility parameters, water sorption isotherm, and permeability coefficients to oxygen, carbon dioxide, water, ethyl acetate, hexane, and cyclohexane were determined. The sorption capacity ofthe PLLA―MOF composite films increased up to 2-fold at each relative humidity to which it was exposed when compared with the PLLA films. The sorption and desorption curves of the PLLA-MOF films show hysteresis. The presence of MOF in the composite films did not significantly modify the permeability coefficients of the PLLA-MOF films. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24573312