Synthesis and characterization of rigid-rod sulfonated polyimides bearing sulfobenzoyl side groups as proton exchange membranes

	Synthesis and characterization of rigid-rod sulfonated polyimides bearing sulfobenzoyl side groups as proton exchange membranes
	Li NW ; Cui ZM ; Zhang SB ; Xing W
刊名	journal of membrane science
	2007
卷号	295 期号:1-2 页码:148-158
关键词	FUEL-CELL APPLICATIONS POLY(ARYLENE ETHER SULFONE) FLUORENYL GROUPS WATER STABILITY ACID GROUPS POLYSULFONE IONOMERS KETONE KETONE) COPOLYMERS CONDUCTIVITY POLYMERS
ISSN号	0376-7388
通讯作者	zhang sb
中文摘要	a novel wholly aromatic diamine, 2,2 '-bis(3-sulfobenzoyl)benzidine (2,2 '-bsbb), was successfully prepared by the reaction of 2,2 '-dibenzoylbenzidine (2,2 '-dbb) with fuming sulfuric acid. copolymerization of 1,4,5,8-naphathlenetetracarboxylic dianhydride with 2,2 '-bsbb and 2,2 '-dbb generated a series of rigid-rod sulfonated polyimides. the synthesized copolymers with the -so3h group on the side chain of polymers possessed high molecular weights revealed by their high viscosity and the formation of tough and flexible membranes. the copolymer membranes exhibited excellent oxidative stability and mechanical properties due to their fully aromatic structure extending through the backbone and pendent groups. they displayed clear anisotropic membrane swelling in water with negligibly small dimensional changes in the plane direction of the membrane. the proton conductivities of copolymer membranes increased with increasing iec and temperature, reaching value above 1.25 x 10(-1) s/cm at 20 degrees c, which is higher than that of nafion (r) 117 at the same measurement condition. they displayed reasonably high proton conductivity due to the higher acidity of benzoyl sulfonic acid group, the larger interchain spacing, which is available for water to occupy, taking their lower water uptake (wu) into account. consequently, these materials proved to be promising as proton exchange membrane.
收录类别	SCI
语种	英语
WOS记录号	WOS:000246534500018
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/13765]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Li NW,Cui ZM,Zhang SB,et al. Synthesis and characterization of rigid-rod sulfonated polyimides bearing sulfobenzoyl side groups as proton exchange membranes[J]. journal of membrane science,2007,295(1-2):148-158.
APA	Li NW,Cui ZM,Zhang SB,&Xing W.(2007).Synthesis and characterization of rigid-rod sulfonated polyimides bearing sulfobenzoyl side groups as proton exchange membranes.journal of membrane science,295(1-2),148-158.
MLA	Li NW,et al."Synthesis and characterization of rigid-rod sulfonated polyimides bearing sulfobenzoyl side groups as proton exchange membranes".journal of membrane science 295.1-2(2007):148-158.