Abstract
The polyimide derived from cyclobutanedianhydride and 2,2-bis(4-aminophenoxyphenyl)propane (CBDA-BAPP) is one of the typical materials for liquid crystal alignment layer in liquid crystal display (LCD). The effects of imidization temperature and spinning condition on degree of imidization, and in-plane orientation of the CBDA-BAPP film were studied. The imidization temperature at 200°C was found to be insufficient for complete imidization of the amic acid group. The in-plane orientations of the CBDA-BAPP films imidized at 200°C and 250°C were similar to each other, although they were higher than that of the film imidized at 150°C. With increasing the spinning rate and decreasing the solution concentration in the spin-casting procedure, the degree of imidization was decreased, together with the increasing in-plane orientation which would be mainly governed by chain immobilization rate over the chain stiffness.
Similar content being viewed by others
Login or create a free account to read this content
Gain free access to this article, as well as selected content from this journal and more on nature.com
or
References
D. S. Seo, K. Araya, N. Yoshida, M. Nishikawa, Y. Yabe, and S. Kobayashi, Jpn. J. Appl. Phys., Part 2, 34, L503 (1995).
H. Fukuro and S. Kobayashi, Mol. Cryst. Liq. Cryst., 163, 157 (1988).
C. Nozaki, N. Imamura, and Y. Sano, Jpn. J. Appl. Phys., 32, 4352 (1993).
H. Ohkita, A. Tsuchida, M. Yamamoto, and J. A. Moore, Macromol. Chem. Phys., 197, 2493 (1996).
J. C. Coburn and M. T. Pottiger, in “Advances in Polyimide Science and Technology,” C. Feger, M. M. Khojasteh, and M. S. Htoo, Ed., Technomic, Lancaster. PA, 1993, p 360.
T. P. Russel, H. Gugger, and J. D. Swalen, J. Polym. Sci., Polym. Phys., 32, 825 (1994).
M. T. Pottiger and J. C. Coburn, Mater. Res. Soc. Symp. Proc., 227, 187 (1991).
M. T. Pottiger and J. C. Coburn, Polym. Mater. Sci. Eng., 66, 194 (1992).
L. Lin and S. A. Bidstrup, Polym. Mater. Sci. Eng., 66, 265 (1992).
S. Morozumi, in “Liquid Crystals: Applications and Uses,” Vol. 1, B. Bahadur. Ed., World Scientific, Singapore, 1990, p 179.
S. C. Noe, J. Y. Pan, and S. D. Senturia, in “Advances in Polyimide Science and Technology,” C. Feger, M. M. Khojasteh, and M. S. Htoo, Ed., Technomic, Lancaster, PA, 1993, p 587.
J. Coburn, M. Pottiger, S. Noe, and S. Senturia, J. Polym. Sci., Part B: Polym. Phys., 32, 1271 (1994).
H. Jou, P. T. Huang, H. C. Chen, and C. N. Liao, Polymer, 33, 967 (1992).
H. Ishida, S. T. Wellinghoff, E. Baer, and J. L. Koenig, Macromolecules, 13, 826 (1980).
E. B. Wilson, Jr., Phys. Rev., 45, 706 (1934).
W. H. Tsai, J. T. Young, F. J. Boerio, and P. Phong, Langmuir, 7, 745 (1991).
B. Thomson, Y. Park, and P. C. Painter, Macromolecules, 22, 4159 (1989).
C. A. Pryde, J. Polym. Sci., Polym. Chem., 27, 711 (1989).
T. D. Russel, H. Gugger, and J. D. Swalen, J. Polym. Sci., Polym. Phys. Ed., 21, 1745 (1983).
K. Nakahawa, J. Appl. Polym. Sci., 41, 41 (1990).
T. S. Chow, J. Polym. Sci., Polym. Phys. Ed., 25, 37 (1987).
H. Nomura and M. Asano, Jpn. J. Appl. Phys., 32, 3933 (1993).
J. L. Koenig, in “Spectroscopy of Polymers,” American Chemical Society, Washington, D.C., 1992, p 26.
M. Hasegawa, T. Matano, Y. Shindo, and T. Sugimura, Macromolecules, 29, 7897 (1996).
J. A. Kreuz, A. L. Endrey, F. P. Gay, and C. E. Sroog, J. Polym. Sci., A-1, 4, 2607 (1960).
M. J. Brekner and C. Feger, J. Polym. Sci., Polym. Chem. Ed., 25, 2005 (1987).
M. J. Brekner and C. Feger, J. Polym. Sci., Polym. Chem. Ed., 25, 2479 (1987).
H. T. Kim, S. K. Kim, and J. K. Park, submitted to J. Mater. Sci. (1997).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kim, HT., Park, JK. Effect of Imidization Temperature and Spinning Condition on Structure of Polyimide Film Derived from Cyclobutanedianhydride and 2,2-Bis(4-aminophenoxyphenyl)propane. Polym J 29, 1002–1006 (1997). https://doi.org/10.1295/polymj.29.1002
Issue date:
DOI: https://doi.org/10.1295/polymj.29.1002
