The Influence of Cu3(BTC)2 Metal Organic Framework on the Permeability and Perm-selectivity of PLLA-MOF Mixed Matrix Membranes

Journal Article

Authors:, Ajay Kathuria, Saleh Al-Ghamdi, Mohamad G.Abiad, Rafael Auras . 2015

• نوع عمل المنشور: Original Article
• رابط المنشور على الويب: The Influence of Cu3(BTC)2 Metal Organic Framework on the Permeability and Perm-selectivity of PLLA-MOF Mixed Matrix Membranes
• الوسوم: Membranes, Polymer, Mixed Matrix, Bio-polymer
• المجلة \ الصحيفة: Journal of Applied Polymer Science
• رقم العدد: 46
• رقم الإصدار السنوي: 132
• الصفحات: 42764

مستخلص المنشور

Poly(L-lactic acid) (PLLA) - 20% (w/w) and Cu3(BTC)2 metal organic framework (MOF) based mixed matrix membranes (MMMs) were fabricated by a vertical co-rotating twin screw micro-compounder followed by injection molding process. Water vapor, CO2, O2 and selected aroma mass transfer properties of PLLA and PLLA MMMs were evaluated. The CO2/O2 perm-selectivity of PLLA (αCO2/O2) MMMs increased from 7.6 to 10.3 with the incorporation of 20% Cu3(BTC)2 MOF. Gravimetric permeability studies of trans-2-hexenal performed at 23oC and 50% RH indicated that permeability coefficient of PLLA MMMs increased by around 60% as compared to regular PLLA film. On the other hand, no changes in mass transfer rates were observed for acetaldehyde. Furthermore, the thermal processing parameters as well as the presence of MOF did not show any significant effect on the molecular weight of the PLLA matrix nor on the crystalline structure of the Cu3(BTC)2 MOF, which was confirmed by both gel permeation chromatography and X-ray diffraction studies.