Preparation and Properties of Sulfonated Poly(ether ether ketone) (SPEEK) Electrospun Nanofibrous Ion-exchange Membrane for PEMFC

Content Provider	Semantic Scholar
Author	Kwak, Noh-Seok Choi, Eun Jung Hwang, Taek Sung
Copyright Year	2012
Abstract	Sulfonated poly(ether ether ketone) (SPEEK) nanofibers were prepared by electrospinning. The nanofibrous membrane for polymer electrolyte membrane fuel cell (PEMFC) was fabricated by compression molding. The maximum degree of sulfonation was 95% and the initial thermal degradation temperature was and it's value was lower than that of PEEK. The contact angle of SPEEK increased with decreasing the degree of sulfonation. The optimum voltage, flow rate, tip to collector distance (TCD) and concentration of electrospinning conditions were 22 kV, 0.3 mL/hr, 15 cm, and 23 wt%, respectively. The average nanofibrous diameter was 47.6 nm. The water uptake and ion exchange capacity of SPEEK nanofibrous membrane increased with increasing the sulfonation time and the amount of sulfonating agent. The electrical resistance and proton ionic conductivity of SPEEK membrane increased with decreasing and increasing the sulfonation time, respectively. Their values were 0.58~0.06 and 0.099 S/cm.
Starting Page	155
Ending Page	162
Page Count	8
File Format	PDF HTM / HTML
Volume Number	36
Alternate Webpage(s)	https://www.cheric.org/PDF/PK/PK36/PK36-2-0155.pdf
Alternate Webpage(s)	https://doi.org/10.7317/pk.2012.36.2.155
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article