Polyimides and Sulfonated Polyimides Derived from Functionalized 1,1-Diphenylethylene Derivatives

2017 ◽  
Vol 375 (1) ◽  
pp. 1600174
Author(s):  
Gabriel J. Summers ◽  
M. Ginette Kasiama ◽  
Carol A. Summers
Keyword(s):  
Sulfonated Polyimides

Synthesis and properties of novel sulfonated polyimides from 2,2?-bis(4-aminophenoxy)biphenyl-5,5?-disulfonic acid

2004 ◽  
Vol 42 (6) ◽  
pp. 1432-1440 ◽  
Author(s):  
Xiaoxia Guo ◽  
Jianhua Fang ◽  
Kazuhiro Tanaka ◽  
Hidetoshi Kita ◽  
Ken-ichi Okamoto
Keyword(s):  
Disulfonic Acid ◽  
Sulfonated Polyimides

Synthesis and properties of novel sulfonated polyimides derived from naphthalenic dianhydride for fuel cell application

2008 ◽  
Vol 313 (1-2) ◽  
pp. 106-119 ◽  
Author(s):  
Xinbing Chen ◽  
Yan Yin ◽  
Pei Chen ◽  
Hidetoshi Kita ◽  
Ken-Ichi Okamoto
Keyword(s):  
Fuel Cell ◽  
Fuel Cell Application ◽  
Sulfonated Polyimides

Synthesis and properties of branched sulfonated polyimides for membranes in vanadium redox flow battery application

2016 ◽  
Vol 210 ◽  
pp. 308-320 ◽  
Author(s):  
Yaping Zhang ◽  
Shuai Zhang ◽  
Xiaodong Huang ◽  
Yuqin Zhou ◽  
Yang Pu ◽  
...  
Keyword(s):  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Sulfonated Polyimides ◽  
Vanadium Redox ◽  
Battery Application

Synthesis and properties of novel side-chain-sulfonated polyimides from bis[4-(4-aminophenoxy)-2-(3-sulfobenzoyl)]phenyl sulfone

Polymer ◽  
2006 ◽  
Vol 47 (8) ◽  
pp. 2660-2669 ◽  
Author(s):  
Shouwen Chen ◽  
Yan Yin ◽  
Kazuhiro Tanaka ◽  
Hidetoshi Kita ◽  
Ken-ichi Okamoto
Keyword(s):  
Side Chain ◽  
Phenyl Sulfone ◽  
Sulfonated Polyimides

Synthesis and properties of novel sulfonated polyimides bearing sulfophenyl pendant groups for fuel cell application

Polymer ◽  
2009 ◽  
Vol 50 (2) ◽  
pp. 510-518 ◽  
Author(s):  
Kangcheng Chen ◽  
Xinbing Chen ◽  
Kazuaki Yaguchi ◽  
Noritaka Endo ◽  
Mitsuru Higa ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Fuel Cell Application ◽  
Sulfonated Polyimides

Influence of Sulfonationity of Epoxy-Based Semi-Interpenetrating Polymer Networks of Sulfonated Polyimides as Proton Exchange Membranes on the Performance of Fuel Cell Application

2010 ◽  
Vol 7 (2) ◽  
Author(s):  
Yen-Zen Wang ◽  
Ko-Shan Ho ◽  
Shinn-Dar Wu ◽  
Kuo-Huang Hsieh ◽  
Chi-Hung Lee
Keyword(s):  
Water Uptake ◽  
Proton Exchange Membrane ◽  
Water Clusters ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Proton Exchange ◽  
Molar Ratio ◽  
Good Thermal Stability ◽  
Sulfonated Polyimide ◽  
Sulfonated Polyimides

A novel epoxy-based semi-interpenetrating polymer networks membrane (SPIX-EP40) as the proton exchange membrane was prepared by a flexible epoxy network with sulfonated polyimide. A series of sulfonated polyamic acid (SPAA) were prepared from 1,4,5,8-naphthalenetetracarboxylic dianhydride, 2,2-benzidinedisulfonic acid (BDSA) and nonsulfonated diamines, such as 4,4′-diaminodiphenyl sulfone. Solid-state C13 nuclear magnetic resonance spectra and Fourier transform infrared spectroscopy were used to verify the synchronization of the imidization of SPAA and the crosslinking reactions of epoxy. The sulfonationity of the copolymers was regulated through a variation in the molar ratio of BDSA to diamine. These membranes owned a good thermal stability and exhibited high proton conductivity that was measured as a function of temperature. The resulting SPI0.7-EP40 and SPI0.8-EP40, at 100% relative humidity, displayed proton conductivities higher than those of Nafion® 117. The membranes displayed higher conductivities than Nafion® membranes because of owning higher activational energies and higher ion exchange capacities. An isotropic swelling phenomenon in water was found for the membrane. From the results of water uptake and the microstructure analyses using transmission electron microscopy (TEM) on different sulfonated levels, it was found that the number of water clusters in SPIX-EP40 membranes increased as the increasing water uptake and the size of water cluster were changed with the sulfonation levels. TEM confirmed the widespread and well-connected hydrophilic domains, demonstrating the presence of the favorable proton-transporting performances of the SPIX-EP40 membrane.

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