화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.25, No.8, 849-855, August, 2017
DOI10.1007/s13233-017-5086-9  Export Citation
Photo-Regulated Conductivity of Polycaprolactone Honeycombpatterned Porous Films Containing Azobenzene-Functionalized Reduced Graphene Oxide
Ju Yeon Park, Umashankar Male, and Do Sung Huh†
  • Department of Chemistry and Nano Science and Engineering, Center of Nano Manufacturing, Inje University, Gimhae, Gyeongnam 50834, Korea
E-mail:
Photo-regulated electrical conductive materials plays an important role in light driven applications such as photo-switching, reversible optical storage etc. Designing of such materials in flexible porous polymeric forms adds advantage in terms of light weight, less density, enhanced performance due to increased surface area. As a result we have synthesized poly(ε-caprolactone) (PCL) composite via insitu ring opening polymerization of ε-caprolactone in the presence of azobenzenefunctionalized reduced graphene oxide (rGO-Azo) and studied its photo-regulated conductive properties in porous and flat films. PCL-rGO-Azo composites were characterized using Fourier transform infrared and UV-vis spectroscopy. Honeycombpatterned porous films were fabricated by breath figure method. The morphology of the films was examined by scanning electron microscopy (SEM). Photo-regulated conductivity of the PCL-rGO-Azo films depending on the UV and visible light illumination has been studied. The conductivity was increased by UV irradiation and recovered by visible light irradiation. The conductivity change is due to the trans-cis isomerization of azobenzene moieties covalent-bonded to reduced graphene oxide (rGO).
Keywords:honeycomb-patterned porous film;breath figure method;poly( ε -caprolactone);reduced graphene oxide;azobenzene;conductivity
  1. Goldsmith BR, Coroneus JG, Khalap VR, Kane AA, Weiss GA, Collins PG, Science, 315, 77 (2007)
  2. Lelmini D, Cagli C, Nardi F, Appl. Phys. Lett., 94, 63511 (2009)
  3. Tarkuc S, Sahmetlioglu E, Tanyell C, Akhmedov IM, Toppare L, Opt. Mater., 30, 1489 (2008)
  4. Feng YY, Feng W, Noda H, Sekino T, Fujii A, Ozaki M, Yoshino K, Carbon, 45, 2445 (2007)
  5. Choi BY, Kahng SJ, Kim S, Kim HW, Song YJ, Kuk Y, Phys. Rev. Lett., 96, 156106 (2006)
  6. Dri C, Peters MV, Schwarz J, Hecht S, Grill L, Nat. Nanotechnol., 3(11), 649 (2008)
  7. Mativetsky JM, Pace G, Elbing M, Rampi MA, Mayor M, Samori P, J. Am. Chem. Soc., 130(29), 9192 (2008)
  8. Yabu H, Hirai Y, Kojima M, Shimomura M, Chem. Mater., 21, 1787 (2009)
  9. Lim SL, Li NJ, Ling QD, Zhu CX, Kang ET, Neoh KG, Appl. Mater., 1, 60 (2009)
  10. Stoll RS, Hecht S, Org. Lett., 11, 4790 (2009)
  11. Liang J, Ma Y, Sims S, Wu L, J. Mater. Chem., 3, 1281 (2005)
  12. Novoselov KS, Geim AK, Morozov SV, Jiang D, Zhang Y, Dubonos SV, Grigorieva IV, Firsov AA, Science, 306, 666 (2004)
  13. Berger C, Song ZM, Li XB, Wu XS, Brown N, Naud C, Mayou D, Li T, Hass J, Marchenkov AN, Conrad EH, First PN, de Heer WA, Science, 312, 1191 (2006)
  14. Meric I, Han MY, Young AF, Ozyilmaz B, Kim P, Shepard KL, Nat. Nanotechnol., 3(11), 654 (2008)
  15. Zhang XQ, Feng YY, Tang SD, Feng W, Carbon, 48, 211 (2010)
  16. Liang YY, Wu DQ, Feng XL, Mullen K, Adv. Mater., 21(17), 1679 (2009)
  17. Liu LH, Yan MD, Nano Lett., 9, 3375 (2009)
  18. Bekyarova E, Itkis ME, Ramesh P, Berger C, Sprinkle M, de Heer WA, Haddon RC, J. Am. Chem. Soc., 131(4), 1336 (2009)
  19. Male U, Modigunta JKR, Huh DS, Polymer, 110, 242 (2017)
  20. Ubukata T, Hara M, Ichimura K, Seki T, Adv. Mater., 16(3), 220 (2004)
  21. Djurado D, Delabouglise D, Cecillon C, Cecchetto L, Decker I, Petit JP, Solid State Ion., 154-155, 29 (2002)
  22. Basuki SW, Schneider V, Strunskus T, Elbahri M, Faupel F, ACS Appl. Mater. Interfaces, 7, 11257 (2015)
  23. Lim HS, Han JT, Kwak D, Jin MH, Cho K, J. Am. Chem. Soc., 128(45), 14458 (2006)
  24. Wang S, Song Y, Jiang L, J. Photochem. Photobiol. C., 8, 18 (2007)
  25. Oner D, McCarthy TJ, Langmuir, 16(20), 7777 (2000)
  26. Widawski G, Rawiso M, Francois B, Nature, 369(6479), 387 (1994)
  27. Chandra R, Rustgi R, Prog. Polym. Sci, 23, 1273 (1998)
  28. Nishikawa T, Nonomura M, Arai K, Hayashi J, Sawadaishi T, Nishiura Y, Hara M, Shimomura M, Langmuir, 19(15), 6193 (2003)
  29. Yamamoto S, Tanaka M, Sunami H, Ito E, Yamashita S, Morita Y, Shimomura M, Langmuir, 23(15), 8114 (2007)
  30. Kim JK, Basavaraja C, Umashankar M, Huh DS, Polymer, 87, 138 (2016)
  31. Male U, Jo EJ, Park JY, Huh DS, Polymer, 99, 623 (2016)
  32. Chen GL, Shau SM, Juang TY, Lee RH, Chen CP, Suen SY, Jeng RJ, Langmuir, 27(23), 14563 (2011)
  33. Zhang X, Feng Y, Huang D, Li Y, Feng W, Carbon, 48, 3236 (2010)
  34. Bora C, Dolui SK, Polym. Int., 63, 1439 (2014)
  35. Chang L, Liu J, Deng L, Dong A, Polym. Chem., 4, 1430 (2013)
  36. Drewniak S, Muzyka R, Stolarczyk A, Pustelny T, Moranska MK, Setkiewicz M, Sensors, 16, 103 (2016)
  37. Park JY, Male U, Huh DS, Macromol. Res., 4, 350 (2016)
  38. Yang S, Yue W, Huang D, Chen C, Lin H, Yang X, RSC Adv., 2, 8827 (2012)
  39. Zhang XQ, Feng YY, Lv P, Shen YT, Feng W, Langmuir, 26(23), 18508 (2010)
  40. Thinh PX, Basavajara C, Kim JK, Huh DS, Polym. Compos., 12, 2159 (2012)
  41. Feng Y, Liu H, Luo W, Liu E, Zhao N, Yoshino K, Feng W, Sci. Rep., 3, 3260 (2013)
  42. Zheng Y, Yuki K, Makoto K, Koji M, J. Mech. Sci. Technol., 25, 33 (2011)
  43. Ferri V, Elbing M, Pace G, Dickey MD, Zharnikov M, Samorı P, Mayor M, Rampi MA, Angew. Chem.-Int. Edit., 47, 3407 (2008)
  44. Wu YL, Demachi Y, Tsutsumi O, Kanazawa A, Shiono T, Ikeda T, Macromolecules, 31(4), 1104 (1998)
  45. Tsutsumi O, Shiono T, Ikeda T, Galli G, J. Phys. Chem. B, 101(8), 1332 (1997)
  46. Li MH, Keller P, Philos. Trans. R. Soc. Lond. Ser. A-Math. Phys. Eng. Sci., 364, 2763 (2006)
  47. Smithson CS, Ljubic D, Wu Y, Zhu S, J. Mater. Chem., 3, 8090 (2015)