Abstract
In this study, research will be carried out to identify the functional group behavior of glassy and rubbery polymeric blend membrane with amines. Polymeric blend membranes with different blending ratios were prepared and the developed membranes were characterized by FTIR to see the effect of blend ratio on different functional groups. The developed membranes are flat dense sheet membrane of 20% wt/wt. The pure and blend membrane polysulfone, polyethersulfone, polyvinyl acetate with different composition, with 10% methyl diethanol amine, mono ethanol amine, diethanol amine are developed with dimethyl acetamide solvent. Fourier Transform Infrared (FTIR) spectroscopy was utilized to study the interaction between two polymers and to analyze the type of bonding present. To observed frequencies were assigned to various mode of vibration in terms of fundamentals and combination. These spectral changes indicated the existence of molecular interaction among the enhanced polymeric blends; highlight the compatible nature among each other.
Highlights
Recent literature surveys reveal an increasing number of polymers, copolymers and blends that are being considered as potential materials that can be used to modify membrane morphology; (Lloyd, 1985; Xu and Qusay, 2004)
The present research addresses the current needs of having high permeability and selectivity membrane for removal of CO2 from natural gas
The developed polymeric blend membranes have improved flexibility, reduced cost, improved process ability and enhanced permeability and/or selectivity compared to the comparable polymer membranes that comprise a single polymer
Summary
Recent literature surveys reveal an increasing number of polymers, copolymers and blends that are being considered as potential materials that can be used to modify membrane morphology; (Lloyd, 1985; Xu and Qusay, 2004). The C-O stretch is on 1244 cm-1 in PES and PVAc., the peak is shifted to 975.78 cm-1 due to these spectral changes indicaed the existence of molecular interaction in polymeric blend (Ahmed et al, 2011). Graph 9 (Appendix) the FTIR of polymeric blend membrane of PVAc. 10%, PES 90% and MDEA
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