Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 493, Issue -, Pages 524-538Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2015.07.012
Keywords
Poly(ether ether ketone); Organic solvent nanofiltration; Drying method; Control of molecular weight cut-off; Statistical analysis
Categories
Funding
- Novartis Pharma AG, Massachusetts Institute of Technology, USA [5710002924]
- EPSRC, United Kingdom [EP/J014974/1]
- EPSRC [EP/J014974/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J014974/1] Funding Source: researchfish
Ask authors/readers for more resources
In this research paper we report two ways of controlling the molecular weight cut-off (MWCO) of PEEK membranes prepared via phase inversion and subsequent drying. The two methods explored were the change of polymer concentration in the dope solution - 8 wt%, 10 wt% and 12 wt% - and the variation of solvent filling the pores prior to drying - e.g. water, methanol, acetone, tetrahydrofuran and n-heptane. The results show that it is possible to vary the MWCO from 295 g mol(-1) to 1400 g mol(-1) by varying these parameters. A statistical analysis based on a genetic algorithm showed that the Hansen solubility parameter, polarity and their interactions with molar volume were likely to be the most important parameters influencing the performance of PEEK membranes when drying from different solvents. In addition, the drying temperature also proved to have an effect on the membrane performance - the higher the temperature the higher the rejection and the lower the permeance. (C) 2015 The Authors. Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available