Abstract
Material properties play an important role in membranes for volatile organic compound (VOCs) removal. A linear triptycene-based polyamide polymer was synthesized by direct condensation acylation using home-made 2,3,6,7-tetracarboxylic acid-triptycene and 3,3'-diaminobenzidine as monomers. The polymer was dissolved in dimethyl sulfoxide under ultrasonication to prepare membrane solution, which was coated on substrate to prepare a cyclohexane-rejective microporous polyamide composite membrane. The synthesized polymer was first characterized by Fourier Transform Infrared Spectroscopy (FTIR) and 1 H Nuclear Magnetic Resonance ( 1 H-NMR) to confirm the structure. Scanning Electron Microscopy (SEM) was used to analyze the surface structure of the polymer composite membrane, and the results show that there is no visible defect on the surface and the membrane thickness is about 1 μm. Effects of feed pressure and concentration on separation performance of VOCs/N 2 mixture were studied and membrane stability was investigated.
| Translated title of the contribution | Preparation of Linear Polyamide Composite Membranes for N 2 /VOCs Separation |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 1412-1418 |
| Number of pages | 7 |
| Journal | Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities |
| Volume | 32 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2018 |