Article
  • Fabrications and Properties of Colorless Polyimide Films Depending on Various Heat Treatment Conditions via Crosslinkable Monomer
  • Choi IH, Chang JH
  • 가교 가능한 단량체를 이용한 무색투명 폴리이미드 필름 제조와 다양한 열처리에 따른 성질
  • 최일환, 장진해
Abstract
Poly(amic acid)(PAA) was prepared by reaction of bicyclo(2,2,2)oct-7-ene-2,3,5,6-tetracarboxylicdianhydride(BTDA) containing double bond for crosslinking and bis[4-(3-aminophenoxy) phenyl] sulfone(BAPS) in N,N-dimethylacetamide(DMAc). The cast film of PAA was heat-treated at different temperatures to create polyimide(PI) films. With increasing thermal crosslinking temperatures from 250 to 350 ℃, the thermo-mechanical properties, degree of crosslinking, and optical transparency of the cross-linked PI were investigated. The maximum enhancement in the thermo-mechanical properties was observed at a heat treatment condition of 350 ℃. However, the optical transparency was found to be optimal for 250 ℃ heat treatment. The degree of crosslinking in NMR was determined to be 85% to 93% with increasing annealing temperature conditions from 250 to 350 ℃.

폴리아믹산(PAA)은 가교가 가능한 2중 결합을 갖는 bicyclo(2,2,2)oct-7-ene-2,3,5,6-tetracarboxylicdianhydride(BTDA)와 bis[4-(3-aminophenoxy)phenyl] sulfone(BAPS)을 N,N-dimethylacetamide(DMAc) 용매에서 반응하여 얻어졌으며, 폴리이미드(PI) 필름은 PAA를 캐스팅하여 각각 다른 반응 온도에서 열처리를 통해 얻었다. 가교 온도를 250∼350 ℃까지 증가하여 얻은 가교된 PI의 열적-기계적 성질, 가교도, 광학적 특성을 열처리 온도에 따라 조사하였다. 열적-기계적 성질은 350 ℃에서 열처리되었을 때 최대 값을 나타냈으며, 광학적 특성은 250 ℃에서 열처리된 필름이 가장 우수한 광학특성을 보였다. 250∼350 ℃까지 열처리에 따른 가교도는 NMR 상에서 85∼93%를 나타냈다.

Keywords: colorless PI; crosslinkable monomer; films.

References
  • 1. Shin GJ, Chi JH, Zin WC, Chang T, Ree M, Jung JC, Polym.(Korea), 30(2), 97 (2006)
  •  
  • 2. Yi MH, Choi KY, Polym. Sci. Technol., 11(6), 741 (2000)
  •  
  • 3. Li HS, Liu JG, Wang K, Fan L, Yang SY, Polymer, 47(4), 1443 (2006)
  •  
  • 4. Wang XL, Li YF, Gong CL, Ma T, Yang FC, J. Fluor. Chem., 129, 56 (2008)
  •  
  • 5. Takahashi S, Paul DR, Polymer, 47(21), 7519 (2006)
  •  
  • 6. Liaw DJ, Huang CC, Chen WH, Polymer, 47(7), 2337 (2006)
  •  
  • 7. Lee C, Sundar S, Kwon J, Han H, J. Polym. Sci. A: Polym. Chem., 42(14), 3612 (2004)
  •  
  • 8. Ju CH, Kim JC, Chang JH, J. Appl. Polym. Sci., 106(6), 4192 (2007)
  •  
  • 9. Jin HS, Chang JH, J. Appl. Polym. Sci., 107(1), 109 (2008)
  •  
  • 10. Jin HS, Chang JH, Polym.(Korea), 32(3), 256 (2008)
  •  
  • 11. Park MH, Yang SJ, Jang WB, Han HS, Korean Chem. Eng. Res., 42, 305 (2005)
  •  
  • 12. Park JS, Chang JH, Polym.(Korea), 33(4), 313 (2009)
  •  
  • 13. Chang JH, Park KM, Lee SM, Oh JB, J. Polym. Sci. B: Polym. Phys., 38(19), 2537 (2000)
  •  
  • 14. Wang GP, Chang TC, Hong YS, Chiu YS, Polymer, 43(8), 2191 (2002)
  •  
  • 15. Chung CL, Hsiao SH, Polymer, 49(10), 2476 (2008)
  •  
  • 16. Yang KS, Edie DD, Lim DY, Kim YM, Choi YO, Carbon, 41, 2039 (2003)
  •  
  • 17. Wang HW, Dong RX, Chu HC, Chang KC, Lee WC, Mater. Chem. Phys., 94(1), 42 (2005)
  •  
  • 18. Yang CY, Hsu SLC, Chen JS, J. Appl. Polym. Sci., 98(5), 2064 (2005)
  •  
  • 19. Ge Z, Fan L, Yang S, Eur. Polym. J., 44, 1252 (2008)
  •  
  • 20. Yin J, Ye YF, Li L, Zhang YL, Huang Y, Wang ZG, Eur. Polym. J., 35, 1367 (1999)
  •  
  • 21. Yang F, Li JZY, Zhang S, Shao Y, Shao H, Ma T, Gong C, Eur. Polym. J., 45, 2053 (2009)
  •  
  • 22. Jang W, Shin D, Choi S, Park S, Han H, Polymer, 48(7), 2130 (2007)
  •  
  • 23. He JH, Horie K, Yokota R, He FF, Polymer, 42(9), 4063 (2001)
  •  
  • 24. Seo KS, Sul KI, Kim YS, Choi KY, Suh DH, Won JC, Polym.(Korea), 31(2), 130 (2007)
  •  
  • 25. Hasegawa M, Horiuchi M, Wada Y, High Perform. Polym., 19, 175 (2007)
  •  
  • 26. Hasegawa M, Horie K, Prog. Polym. Sci., 26, 259 (2001)
  •  
  • 27. Pavia DL, Lampman GM, Kriz GSEditors, Introduction to Spectroscopy, Brooks/Cole, Thomson Learning Inc, Washington, USA, Chapter 7 (2001)
  •  
  • 28. Pavia DL, Lampman GM, Kriz GDEditors, Introduction to Spectroscopy, Brooks/Cole, Thomson Learning Inc, Washington, USA, Chapter 3 (2001)
  •  
  • 29. Wang WL, Li YF, Gong CL, Ma T, Yang FC, J. Fluor. Chem., 129, 56 (2008)
  •  
  • 30. Yang CP, Su YY, Wen SJ, Hsiao SH, Polymer, 47(20), 7021 (2006)
  •  
  • 31. Park JS, Chang JH, Polym.(Korea), 33(4), 313 (2009)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2010; 34(5): 391-397

    Published online Sep 25, 2010

  • Received on Nov 23, 2009
  • Accepted on Apr 27, 2010