술폰화된 PolySEBS/PS Blending 필름의 제조

장석용; 한신호; Suk-Yong Jang; Sien-Ho Han

Journal of the Korean Industrial and Engineering Chemistry, Vol.19, No.2, 205-208, April, 2008

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술폰화된 PolySEBS/PS Blending 필름의 제조

Preparation of Sulfonated PolySEBS/PS Blending Films

장석용, 한신호^†

한국산업기술대학교 지식기반기술ㆍ에너지대학원

Suk-Yong Jang, and Sien-Ho Han^†

Graduate School of Knowledge Based Technology and Energy, Korea Polytechnic University, Kyonggi-Do 429-450, Korea

E-mail:

초록

저가인 aromatic elastomer polymer인 polySEBS와 PS의 방향족 작용기에 술폰기를 도입시킴으로써 sulfonated polySEBS과 sulfonated PS를 얻었다. 이 술폰화된 고분자를 활용하여 고분자 전해질 연료전지의 이온 교환막으로 사용될 수 있는 새로운 sulfonated polySEBS/sulfonated PS blending films를 제조하였다. 이 필름들의 수소이온 전도도는 sulfonated polySEBS와 sulfonated PS의 혼합비에 따라 10-2∼10-3S/cm로 다양하게 나타났다. 특히, sulfonated polySEBS 10.0 g에 sulfonated PS를 0.5 g 첨가하여 제조한 film이 0.75 meq/g의 이온교환용량 및 25%의 함수율과 함께 가장 우수한 0.07 S/cm의 이온전도도를 나타냈다.

Sulfonated polySEBS and sulfonated PS were synthesized by sulfonation at the aromatic group of polySEBS and PS. Novel sulfonated polySEBS/sulfonated PS blending films for the ion exchange membrane of polymer electrolyte fuel cell were prepared from these sulfonated polymers. The proton conductivities of these blending films were varied in 10-2∼10-3S/cm with the blending ratio of sulfonated polySEBS/sulfonated PS. Especially, the film prepared from the addition of the sulfonated PS (0.5 g) in the sulfonated polySEBS (10.0 g) has the best proton conductivity (0.07 S/cm) with ion exchange capacity (0.75 meq/g) and water uptake (25%).

Keywords:polymer electrolyte membrane;fuel cell;polySEBS;PS;proton conductivity

[References]

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[1] Rikukawa M, Sanui K, Prog. Polym. Sci, 25, 1463 (2000)

[2] Harrison WL, Wang F, Mecham JB, Bhanu VA, Hill M, Kim YS, McGrath JE, J. Polym. Sci. A: Polym. Chem., 41(14), 2264 (2003)

[3] Wang F, Hickner M, Kim YS, Zawodzinki TA, McGrath JE, J. Polym. Sci., 197, 231 (2002)

[4] Bucio E, Fitch JW, Venumbaka SR, Cassidy PE, Polymer, 46(12), 3971 (2005)

[5] Kaskhedikar N, Paulsdorf J, Burjanadze A, Karatas Y, Roling B, Wiemhofer HD, Solid State Ion., 177(26-32), 2699 (2006)

[6] Lee CH, Hwang SY, Sohn JY, Park HB, Kim JY, Lee YM, J. Power Sources, 163(1), 339 (2006)

[7] Smitha B, Sridhar S, Khan AA, J. Membr. Sci., 225(1-2), 63 (2003)

[8] Wang CP, Chu HS, Yan YY, Hsueh KL, J. Power Sources, 170(2), 235 (2007)

[9] Sambandam S, Ramani V, J. Power Sources, 170(2), 259 (2007)

[10] Jung HY, Cho KY, Sung KA, Kim WK, Park JK, J. Power Sources, 163(1), 56 (2006)

[11] Gao Y, Robertson GP, Guiver MD, Ean XG, Mikhailenko SD, Wang KP, Kaliaguine S, J. Membr. Sci., 227(1-2), 39 (2003)

[12] Yoon CB, Meyer WH, Wegner G, Synth. Met., 119, 465 (2001)

[13] Shen J, Xi JY, Zhu WT, Chen LQ, Qiu XP, J. Power Sources, 159(2), 894 (2006)

[14] Bebin P, Caravanier M, Galiano H, J. Membr. Sci., 278(1-2), 35 (2006)

[15] Summer MJ, Harrison WL, Weyers RM, Kim YS, McGrath JE, Riffle JS, Brink A, Brink MH, J. Membr. Sci., 239(2), 199 (2004)

[16] Edmondson CA, Fontanella JJ, Solid State Ion., 152, 355 (2002)