Preparation and characterization of crosslinked PVA/PAMPS blends catalytic membranes for biodiesel production
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Crosslinked PVA/PAMPS catalytic membranes as heterogeneous catalyst for biodiesel production were successfully prepared with different poly (2-acryloamido-2-1-propanesulfonic acid) (PAMPS) ratios (30, 20 and 10 wt%) and crosslinked with succinic acid (SA) (5 and 10 wt%) at two different temperatures (100 and 120 °C). FTIR confirmed the successful crosslinking by esterification of the –OH groups in PVA with SA. PVA/PAMPS blend membranes crosslinked with 10 wt% SA at 100 °C were highly effective as heterogeneous catalysts for the transesterification of soybean oil with methanol (90–94% conversion) in comparison with PVA/PAMPS membranes crosslinked with 5 wt% SA. The performance of the catalytic membranes is well correlated with the ion exchange capacity (IEC), swelling properties and crosslinking degree. The reuse of PVA/PAMPS catalytic membrane for a second reaction run indicates that activity of the membrane remains unchanged.
KeywordsPVA PAMPS Polymer blend Catalytic membranes Biodiesel production
This project was founded by SENER CEMIE-BIO 250014. M. O. González-Díaz acknowledges the Cátedras CONACyT Project No. 3139. Z. Corzo-Gonzalez gratefully acknowledges a Grant No. 376912 from CONACyT. NMR measurements were conducted at LANNBIO Cinvestav-Mérida and we want to thank Dr. Patricia Quintana for that.
- 15.Shi W, Yang M, Li H, Zhou R, Zhang H (2015) Preparation and characterization of sulfonated poly(ether sulfone) (SPES)/phosphotungstic acid (PWA) hybrid membrane for biodiesel production. Catal Lett 145(1581):1590Google Scholar
- 22.Qiao J, Hamaya T (2007) PVA-PAMPS based semi-IPNs as new type of proton-conducting membranes for low-temperature DMFC. J New Mat Electr Sys 10:231–236Google Scholar