Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.memsci.2014.01.030
Title: Pervaporation dehydration of acetone using P84 co-polyimide flat sheet membranes modified by vapor phase crosslinking
Authors: Mangindaan, D.W.
Min Shi, G.
Chung, T.-S. 
Keywords: Acetone
Ethylenediamine
P84
Pervaporation
Polyimide
Vapor crosslinking
Issue Date: 15-May-2014
Citation: Mangindaan, D.W., Min Shi, G., Chung, T.-S. (2014-05-15). Pervaporation dehydration of acetone using P84 co-polyimide flat sheet membranes modified by vapor phase crosslinking. Journal of Membrane Science 458 : 76-85. ScholarBank@NUS Repository. https://doi.org/10.1016/j.memsci.2014.01.030
Abstract: In this work, a unique vapor crosslinking method is applied for the first time to fabricate polyimide-based pervaporation membranes for the dehydration of acetone. By controlling the temperature and duration of the crosslinking reaction using ethylenediamine (EDA) vapor and using the right dope formulation to cast P84 co-polyimide membranes with balanced macrovoid and sponge-like morphology, we have optimized the crosslinking parameters to obtain a membrane with a separation factor of 53 (i.e., a water permeate concentration of 90%) and a high flux of 1.8kgm-2h-1 for pervaporation dehydration of acetone at 50°C from a feed of 85/15 acetone/water. With the aid of characterizations for surface chemistry and physics of the modified membranes, such as FTIR-ATR, XPS, and XRD, the crosslinking between EDA and P84 is confirmed at the selective layer of the membrane, as well as structure-performance relationship. This new modification method for pervaporation membranes is attractive for creating a new class of membranes for the separation of organic solvents and biofuel. © 2014 Elsevier B.V.
Source Title: Journal of Membrane Science
URI: http://scholarbank.nus.edu.sg/handle/10635/89753
ISSN: 03767388
DOI: 10.1016/j.memsci.2014.01.030
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

20
checked on Sep 19, 2018

WEB OF SCIENCETM
Citations

18
checked on Sep 19, 2018

Page view(s)

65
checked on May 25, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.