Poly(hydroxyamide) as support for thin-film composite membranes for water treatment
- 19 Downloads
Preparation of a porous support for a thin-film composite (TFC) membrane was achieved based on a highly aromatic poly(hydroxyamide) (PHA) formed from 5-hydroxyisophthalic acid and 4,4′-(hexafluoroisopropylidene)dianiline. PHA synthesis was confirmed by Fourier transform infrared and proton nuclear magnetic resonance (1H NMR) spectroscopies. PHA was soluble in N-methyl-2-pyrrolidinone (NMP), N,N-dimethylacetamide (DMAc), and tetrahydrofuran (THF) with Mw 6.1 × 104 Da. Moreover, PHA showed good thermal stability up to 390 °C. Parameters for an appropriated PHA porous structure support membrane by the phase-inversion method were determined. Porous PHA support offers higher thermal stability and better adhesion between support amide thin skin layer than the ones used actually. Water permeation flux was 543 L m−2 h−1 for PHA porous support, whereas thin-film composite membrane PHA-TFC formed presented a decrease in water permeation flux (2.5 L m−2 h−1) and a salt rejection capacity of 29% which situates it as a nanofiltration membrane.
KeywordsPolyhydroxyamide Thin-film composite membrane Nanofiltration Interfacial reaction
The authors are grateful for the financial support by CONACYT-FOMIX under the Grant number 108200. Marcial Yam‐Cervantes gratefully acknowledge financial support from CONACyT Grant 344563. The authors are thankful to Dr. Patricia Quintana and Dr. Emmanuel Hernández for 1H-NMR analysis from the National Laboratory of Nano and Biomaterials (LANNBIO). Partial funding from Grants FOMIX-Yucatán 2008-108160, CONACYT LAB-2009-01-123913 is acknowledged.
- 1.Le NL, Nunez SP (2016) Materials and membrane technologies for water and energy sustainability. Sustain Mater Technol 7:1–28Google Scholar
- 9.Zhang R, Yu S, Shi W, Wang W, Wang X, Zhang Z, Li L, Zhang B, Bao X (2017) A novel polyesteramide thin film composite nanofiltration membrane prepared by interfacial polymerization of serinol and trimesoyl chloride (TMS) catalyzed by 4-dimethylaminopyridine. J Membr Sci 542:68–80CrossRefGoogle Scholar
- 11.Yakavalangi ME, Rimaz S, Vatanpour V (2017) Effect of surface properties of polysulfone support on the performance of thin film composite polyamide reverse osmosis membranes. J Appl Polym Sci 134:44444Google Scholar
- 21.Yam-Cervantes MA, Santiago-García JL, Loría-Bastarrachea MI, Duarte-Aranda S, Ruiz-Treviño FA, Aguilar-Vega M (2017) Sulfonated polyphenylsulfone asymmetric membranes: effect of coagulation bath (acetic acid-NaHCO3/isopropanol) on morphology and antifouling properties. J Appl Polym Sci 134:44502CrossRefGoogle Scholar
- 25.Zhu J, Zheng J, Zhang Q, Zhang S (2016) Antifouling ultrafiltration membrane fabricated from poly (arylene ether ketone) bearing hydrophilic hydroxyl groups. J Appl Polym Sci 133(42809):1–11Google Scholar