1297
IRUS Total
Downloads

Polymer nanofilms with enhanced microporosity by interfacial polymerization

File Description SizeFormat 
NM15123714A_Manuscript Accepted.pdfAccepted version14.66 MBAdobe PDFView/Open
Title: Polymer nanofilms with enhanced microporosity by interfacial polymerization
Authors: Jimenez-Solomon, M
Song, Q
Jelfs, K
Munoz-Ibanez, M
Livingston, AG
Item Type: Journal Article
Abstract: Highly permeable and selective membranes are desirable for energy-efficient gas and liquid separations. Microporous organic polymers have attracted significant attention in this respect owing to their high porosity, permeability, and molecular selectivity. However, it remains challenging to fabricate selective polymer membranes with controlled microporosity which are stable in solvents. Here we report a new approach to designing crosslinked, rigid polymer nanofilms with enhanced microporosity by manipulating the molecular structure. Ultra-thin polyarylate nanofilms with thickness down to 20 nm were formed in-situ by interfacial polymerisation. Enhanced microporosity and higher interconnectivity of intermolecular network voids, as rationalised by molecular simulations, are achieved by utilising contorted monomers for the interfacial polymerisation. Composite membranes comprising polyarylate nanofilms with enhanced microporosity fabricated in-situ on crosslinked polyimide ultrafiltration membranes show outstanding separation performance in organic solvents, with up to two orders of magnitude higher solvent permeance than membranes fabricated with nanofilms made from noncontorted planar monomers.
Issue Date: 2-May-2016
Date of Acceptance: 5-Apr-2016
URI: http://hdl.handle.net/10044/1/31460
DOI: 10.1038/nmat4638
ISSN: 1476-4660
Publisher: Nature Publishing Group
Start Page: 760
End Page: 767
Journal / Book Title: Nature Materials
Volume: 15
Copyright Statement: © 2016 Macmillan Publishers Limited. All rights reserved.
Sponsor/Funder: Engineering & Physical Science Research Council (E
Engineering & Physical Science Research Council (EPSRC)
The Royal Society
Engineering and Physical Sciences Research Council
Funder's Grant Number: EPSRC Ref EP/M01486X/1
EP/J014974/1
UF120469
EP/J014974/1
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Chemistry
Materials Science
Physics
ORGANIC-SOLVENT NANOFILTRATION
CRYSTALLINE POROUS MATERIALS
MOLECULAR-SIEVING MEMBRANES
GRAPHENE OXIDE MEMBRANES
GAS SEPARATION MEMBRANES
HIGH-FLUX MEMBRANES
INTRINSIC MICROPOROSITY
THIN-FILMS
HYDROXIDE NANOSTRANDS
FRAMEWORK NANOSHEETS
Nanoscience & Nanotechnology
Publication Status: Published
Online Publication Date: 2016-05-02
Appears in Collections:Chemistry
Chemical Engineering
Faculty of Natural Sciences
Faculty of Engineering