PREPARATION AND CHARACTERIZATION OF POLYURETHANE- POLYDIMETHYLSILOXANE/POLYAMIDE12-B-POLYTETRAMETHYLENE GLYCOL BLEND MEMBRANES FOR GAS SEPARATION

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SEMSARZADEH MOHAMMAD ALI; VAKILI ESHAGH

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Journal: Iranian Journal of Polymer Science and Technology Year:2013 | Volume:26 | Issue:4 (ISSUE NO. 126) Page(s): 338-348

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Title

PREPARATION AND CHARACTERIZATION OF POLYURETHANE- POLYDIMETHYLSILOXANE/POLYAMIDE12-B-POLYTETRAMETHYLENE GLYCOL BLEND MEMBRANES FOR GAS SEPARATION

Author(s)

SEMSARZADEH MOHAMMAD ALI | VAKILI ESHAGH | Issue Writer Certificate

Keywords

GAS SEPARATIONQ2

MEMBRANEQ2

PERMEABILITYQ2

POLYURETHANE-POLYDIMETHYLSILOXANEQ3

POLYAMIDE12-B-PTMGQ2

Abstract

Blend MEMBRANEs of synthesized polyurethane based on toluene diisocyanate (TDI), polydimethylsiloxane (PDMS) and polytetramethylene glycol (PTMG) with POLYAMIDE12-B-PTMG were prepared by solution casting technique. The synthesized POLYURETHANE-POLYDIMETHYLSILOXANE and PU-PDMS/ POLYAMIDE12-B-PTMG blend MEMBRANEs were characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). In the FTIR spectrum of the synthesized PU-PDMS, the disappearance of NCO stretching vibration at 2270 cm−1 was used to confirm the completion of the reaction. According to our DSC results, the use of higher POLYAMIDE12-B-PTMG content in PU-PDMS/polyamide12-b-PTMG blends led to greater compatibility between the two phases. The SEM images showed that the blends with POLYAMIDE12-B-PTMG (20 wt%) were significantly more homogeneous in the micrometric scale compared to other samples. Gas transport properties have been determined for N2, CO2 and He gases and the obtained PERMEABILITY values were correlated with the properties of the blends. The comparison of the results with that of the pure PU-PDMS MEMBRANE showed that the blend MEMBRANEs had a higher PERMEABILITY toward CO2 and lower toward N2 gas. The blend MEMBRANE with 20 wt% POLYAMIDE12-B-PTMG showed higher CO2 PERMEABILITY (»105 Barrer) compared to PU-PDMS MEMBRANE. By introduction of POLYAMIDE12-B-PTMG into PU-PDMS matrix a perceptible rise in helium ideal selectivity of the blend MEMBRANEs was observed. In blend MEMBRANEs with 5-20 wt% POLYAMIDE12-B-PTMG contents, an enhancement of CO2/N2 (244%), He/N2 (20%) and CO2/He (103%) selectivity factor was observed. The experimental PERMEABILITY values of the blend MEMBRANEs were compared with the calculated PERMEABILITY based on a modified additive logarithmic model.

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APA: Copy

SEMSARZADEH, MOHAMMAD ALI, & VAKILI, ESHAGH. (2013). PREPARATION AND CHARACTERIZATION OF POLYURETHANE- POLYDIMETHYLSILOXANE/POLYAMIDE12-B-POLYTETRAMETHYLENE GLYCOL BLEND MEMBRANES FOR GAS SEPARATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 26(4 (ISSUE NO. 126)), 338-348. SID. https://sid.ir/paper/6384/en

Vancouver: Copy

SEMSARZADEH MOHAMMAD ALI, VAKILI ESHAGH. PREPARATION AND CHARACTERIZATION OF POLYURETHANE- POLYDIMETHYLSILOXANE/POLYAMIDE12-B-POLYTETRAMETHYLENE GLYCOL BLEND MEMBRANES FOR GAS SEPARATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2013;26(4 (ISSUE NO. 126)):338-348. Available from: https://sid.ir/paper/6384/en

IEEE: Copy

MOHAMMAD ALI SEMSARZADEH, and ESHAGH VAKILI, “PREPARATION AND CHARACTERIZATION OF POLYURETHANE- POLYDIMETHYLSILOXANE/POLYAMIDE12-B-POLYTETRAMETHYLENE GLYCOL BLEND MEMBRANES FOR GAS SEPARATION,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 26, no. 4 (ISSUE NO. 126), pp. 338–348, 2013, [Online]. Available: https://sid.ir/paper/6384/en

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