Proton Exchange Membrane Developed from Novel Blends of Polybenzimidazole and Poly(vinyl-1,2,4-triazole)

被引:94
作者
Hazarika, Mousumi [1 ]
Jana, Tushar [1 ]
机构
[1] Univ Hyderabad, Sch Chem, Hyderabad 500134, Andhra Pradesh, India
关键词
proton exchange membranes; polybenzimidazole; poly (1-vinyl-1,2,4-triazole); miscible blend; proton conductivity; POLYMER ELECTROLYTE MEMBRANES; ACID; TEMPERATURE; CONDUCTIVITY; IMIDAZOLE; TRANSPORT; TRIAZOLE; 1H-1,2,4-TRIAZOLE; POLYSTYRENE; MISCIBILITY;
D O I
10.1021/am301185b
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In continuation (J. Phys. Chem. B 2008, 112, 5305; J. Colloid Interface Sri. 2010, 351, 374) of our quest for proton exchange membrane (PEM) developed from polybenzimidazole (PBI) blends, novel polymer blend membranes of PBI and poly(1-vinyl-1,2,4-triazole) (PVT) were prepared using a solution blending method. The aim of the work was to investigate the effect of the blend composition on the properties, e.g., thermo-mechanical stability, swelling, and proton conductivity of the blend membranes. The presence of specific interactions between the two polymers in the blends were observed by studying the samples using varieties of spectroscopic techniques. Blends prepared in all possible compositions were studied using a differential scanning calorimetry (DSC) and exhibited a single T-g value, which lies between the T-g value of the neat polymers. The presence of a single composition-dependent T-g value indicated that the blend is a miscible blend. The N-H center dot center dot center dot N interactions between the two polymers were found to be the driving force for the miscibility. Thermal stability up to 300 degrees C of the blend membranes, obtained from thermogravimetric analysis, ensured their suitability as PEMs for high-temperature fuel cells. The proton conductivity of the blend membranes have improved significantly, compared to neat PBI, because of the presence of triazole moiety, which acts as a proton facilitator in the conduction process. The blend membranes showed a considerably lower increase in thickness and swelling ratio than that of PBI after doping with phosphoric acid (PA). We found that the porous morphology of the blend membranes caused the loading of a larger amount of PA and, consequently, higher proton conduction with lower activation energy, compared to neat PBI.
引用
收藏
页码:5256 / 5265
页数:10
相关论文
共 55 条
[1]   Hydrogen-bonding strength in the blends of polybenzimidazole with BTDA- and DSDA-based polyimides [J].
Ahn, TK ;
Kim, M ;
Choe, S .
MACROMOLECULES, 1997, 30 (11) :3369-3374
[2]   Proton-conducting membranes based on benzimidazole polymers for high-temperature PEM fuel cells. A chemical quest [J].
Antonio Asensio, Juan ;
Sanchez, Eduardo M. ;
Gomez-Romero, Pedro .
CHEMICAL SOCIETY REVIEWS, 2010, 39 (08) :3210-3239
[3]   Blends of polybenzimidazole and poly(vinylidene fluoride) for use in a fuel cell [J].
Arunbabu, Dhamodaran ;
Sannigrahi, Arindam ;
Jana, Tushar .
JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (17) :5305-5310
[4]   Preparation, Properties, and Characterization of Polymer Electrolyte Membranes Based on Poly(1-vinyl-1,2,4 triazole) and Poly(styrene sulfonic acid) [J].
Aslan, Ayse ;
Sen, Uenal ;
Bozkurt, Ayhan .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (10) :B1112-B1116
[5]   Development and characterization of polymer electrolyte membranes based on ionical cross-linked poly(1-vinyl-1,2,4 triazole) and poly(vinylphosphonic acid) [J].
Aslan, Ayse ;
Bozkurt, Ayhan .
JOURNAL OF POWER SOURCES, 2009, 191 (02) :442-447
[6]   Intrinsically proton-conducting poly(1-vinyl-1,2,4-triazole)/triflic acid blends [J].
Aslan, Ayse ;
Celik, Sevim Ue ;
Sen, Uenal ;
Haser, Resul ;
Bozkurt, Ayhan .
ELECTROCHIMICA ACTA, 2009, 54 (11) :2957-2961
[7]  
Blomen L., 1993, FUEL CELL SYSTEMS
[8]   Polymer membranes for high temperature proton exchange membrane fuel cell: Recent advances and challenges [J].
Bose, Saswata ;
Kuila, Tapas ;
Thi Xuan Lien Nguyen ;
Kim, Nam Hoon ;
Lau, Kin-tak ;
Lee, Joong Hee .
PROGRESS IN POLYMER SCIENCE, 2011, 36 (06) :813-843
[9]   The evaluation of miscibility of blends of poly(ether imide) (Ultem®1000) and a copolyester of bisphenol-A with terephthalic and isophthalic acid (Ardel®D-100) by viscosimetry [J].
Cakar, Fatih ;
Sakar, Dolunay ;
Cankurtaran, Ozlem ;
Karaman, Ferdane .
EUROPEAN POLYMER JOURNAL, 2007, 43 (02) :507-513
[10]   Phosphoric acid-doped poly(1-vinyl-1,2,4-triazole) as water-free proton conducting polymer electrolytes [J].
Celik, Sevim U. ;
Aslan, Ayse ;
Bozkurt, Ayhan .
SOLID STATE IONICS, 2008, 179 (19-20) :683-688