Next Article in Journal
pH and Salt Effects on the Associative Phase Separation of Oppositely Charged Polyelectrolytes
Next Article in Special Issue
Crystallization Behaviors and Structure Transitions of Biocompatible and Biodegradable Diblock Copolymers
Previous Article in Journal
Cost and Ductility Effectiveness of Concrete Columns Strengthened with CFRP and SFRP Sheets
Previous Article in Special Issue
Morphologies and Thermal Variability of Patterned Polymer Films with Poly(styrene-co-maleic anhydride)
Article Menu

Export Article

Open AccessArticle
Polymers 2014, 6(5), 1403-1413; doi:10.3390/polym6051403

Fabrication of CO2 Facilitated Transport Channels in Block Copolymer through Supramolecular Assembly

1
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China
2
Beijing National Laboratory for Molecular Sciences(MNLMS), Key Laboratory of Organic Solid, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
*
Author to whom correspondence should be addressed.
Received: 21 January 2014 / Revised: 13 April 2014 / Accepted: 6 May 2014 / Published: 14 May 2014
(This article belongs to the Special Issue Non-Equilibrium Blockcopolymer Self-Assembly)
View Full-Text   |   Download PDF [549 KB, uploaded 14 May 2014]   |  

Abstract

In this paper, the molecule 12-amidine dodecanoic acid (M) with ending groups of carboxyl and amidine groups respectively was designed and synthesized as CO2-responsive guest molecules. The block copolymer polystyrene-b-polyethylene oxide (PS-b-PEO) was chosen as the host polymer to fabricate a composite membrane through H-bonding assembly with guest molecule M. We attempted to tune the phase separation structure of the annealed film by varying the amount of M added, and investigated the nanostructures via transmission electron microscope (TEM), fourier transform infrared (FT-IR) etc. As a result, a reverse worm-like morphology in TEM image of bright PS phase in dark PEO/M matrix was observed for PS-b-PEO/M1 membrane in which the molar ratio of EO unit to M was 1:1. The following gas permeation measurement indicated that the gas flux of the annealed membranes dramatically increased due to the forming of ordered phase separation structure. As we expected, the obtained composite membrane PS-b-PEO/M1 with EO:M mole ratio of 1:1 presented an evident selectivity for moist CO2 permeance, which is identical with our initial proposal that the guest molecule M in the membranes will play the key role for CO2 facilitated transportation since the amidine groups of M could react reversibly with CO2 molecules in membranes. This work provides a supramolecular approach to fabricating CO2 facilitated transport membranes. View Full-Text
Keywords: block copolymer; supramolecular self-assembly; carbon dioxide; amidine; hydrogen-bond; facilitated transport membrane block copolymer; supramolecular self-assembly; carbon dioxide; amidine; hydrogen-bond; facilitated transport membrane
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, Y.; Shang, Y.; Li, X.; Tian, T.; Gao, L.; Jiang, L. Fabrication of CO2 Facilitated Transport Channels in Block Copolymer through Supramolecular Assembly. Polymers 2014, 6, 1403-1413.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top