Synthesis of poly(styrene-b-styrenesulfonic acid) and its blend with PPO for proton exchange membrane.
Poly(styrene-b-styrenesulfonic acid sodium salts) (PS-b-PSSNa) were synthesized via stable free radical polymerization (SFRP) using 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) radical and the block copolymers were blended with poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) to prepare polymer electrolyte membranes (PEM). The ratio of block length and total molecular weight of PS-b-PSSA were varied, and weight ratio of PPO/PS-b-PSSA was also controlled. The blend membranes showed good proton conductivity, low methanol permeability, and good thermal property.
Cho
Chang G
CG
Department of Fiber and Polymer Engineering, Centers for Advanced Functional Polymers, Hanyang University, Seoul 133-791, Korea.
You
Young G
YG
Jang
Hye Y
HY
Woo
Jung K
JK
An
Sung K
SK
D002152:Calorimetry, Differential Scanning / Q000379:methods; D003497:Cyclic N-Oxides / Q000737:chemistry*; D006358:Hot Temperature; D008566:Membranes / Q000737:chemistry; D000432:Methanol / Q000737:chemistry; D018625:Microscopy, Atomic Force; D008956:Models, Chemical; D008970:Molecular Weight; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D010539:Permeability; D010647:Phenyl Ethers / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry*; D011522:Protons; D013451:Sulfonic Acids / Q000138:chemical synthesis* / Q000737:chemistry*; D013696:Temperature
D003497:Cyclic N-Oxides; D010647:Phenyl Ethers; D011108:Polymers; D011522:Protons; D013451:Sulfonic Acids; C488462:poly(2,6-dimethyl-1,4-phenylene oxide); C003959:TEMPO; D000432:Methanol; C077114:styrenesulfonic acid polymer