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

doi:10.3390/polym6051403

CORC > 化学研究所 > 中国科学院化学研究所

	Fabrication of CO2 Facilitated Transport Channels in Block Copolymer through Supramolecular Assembly
	Wang, Yao 1; Shang, Ying 1; Li, Xianwu 1; Tian, Tong 1; Gao, Longcheng 1; Jiang, Lei 1,2
刊名	POLYMERS
	2014-05-01
卷号	6 期号:5 页码:1403-1413
关键词	Block Copolymer Supramolecular Self-assembly Carbon Dioxide Amidine Hydrogen-bond Facilitated Transport Membrane
ISSN号	2073-4360
DOI	10.3390/polym6051403
英文摘要	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.
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000337946500008
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/50919]
专题	中国科学院化学研究所
通讯作者	Wang, Yao
作者单位	1.Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Organ Solid, MNLMS, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yao,Shang, Ying,Li, Xianwu,et al. Fabrication of CO2 Facilitated Transport Channels in Block Copolymer through Supramolecular Assembly[J]. POLYMERS,2014,6(5):1403-1413.
APA	Wang, Yao,Shang, Ying,Li, Xianwu,Tian, Tong,Gao, Longcheng,&Jiang, Lei.(2014).Fabrication of CO2 Facilitated Transport Channels in Block Copolymer through Supramolecular Assembly.POLYMERS,6(5),1403-1413.
MLA	Wang, Yao,et al."Fabrication of CO2 Facilitated Transport Channels in Block Copolymer through Supramolecular Assembly".POLYMERS 6.5(2014):1403-1413.