PEG/PVDF membranes for separating organosulphur compounds from N-heptane: Effect pf PEG molecular weight was written by Hu, Wenling;Han, Xiaolong;Liu, Liangliang;Zhang, Xin;Xue, Juanqin;Wang, Baoyi;Zhang, Peng;Cao, Xingzhong. And the article was included in Canadian Journal of Chemical Engineering in 2017.Formula: C6H8S The following contents are mentioned in the article:
Polyethylene glycol (PEG) of three different mol. weights were used to prepared PEG/PVDF composite membranes for separating organosulphur compounds from n-heptane by pervaporation. All the composite membranes were characterized by Fourier transform IR spectroscopy (FTIR), SEM (SEM) X-ray diffraction (XRD) and positron annihilation spectroscopy (PAS). The effects of operating temperature, feed sulfur content and organosulphur species on performance of PEG/PVDF composite membranes with different mol. weights were investigated. When the feed organosulphur was thiophene, the fluxes decreased with an increase in PEG mol. weights, however, the enrichment factors were in the different order, PEG membrane with mol. weight of 35 000 exhibited highest enrichment factor of 12.59 for thiophene at 85 °C. When the feed organosulphur was 2-Methylthiophene or 2, 5-Dimethylthiophene, it was found that PEG membrane with mol. weight of 100 000 showed highest enrichment factor. The results showed that PEG mol. weights have a considerable effect on separation performance for pervaporation desulphurization. This article is protected by copyright. All rights reserved. This study involved multiple reactions and reactants, such as 2,5-Dimethylthiophene (cas: 638-02-8Formula: C6H8S).
2,5-Dimethylthiophene (cas: 638-02-8) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The core structure is a part of various pharmaceutical substances and natural products. It is found within the chemical structures of pharmaceutical drugs such as zileuton, raloxifene, and sertaconazole, and also BTCP.Formula: C6H8S
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem