Preparation of OMMT and Light-Colored and Transparent PI/OMMT Hybrid Composite Films

Abstract:

The organo-modified montmorillonite (OMMT) was prepared from Na+montmorillonite (Na+MMT) by cation exchange with cetyltrimethyl ammonium bromide (CTMAB). The light-colored and transparent polyimide (PI) and OMMT hybrid composite films from the solution of poly(amic acid)(PAA) and various amounts (0.25, 0.50, 0.75, 1.00wt%) of OMMT in N, N-dimethylacetamide (DMAc) were prepared. The PAA was synthesized from the reaction of the alicyclic dianhydrides 1,2,3,4-cyclobutanetrtracarboxylic dianhydride (CBDA) and fluorinated aromatic diamines 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene (6FAPB). The OMMT and PI/OMMT hybrid composite films were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), UV-vis transmission spectra and solubility testing. The experimental results showed that the OMMT exhibited a 2.12nm d-spacing value. These obtained PI/OMMT hybrid composites were soluble in typical imide type polar solvent. As the OMMT contents are increased, the transparency of the PI/OMMT hybrid composite films is sacrificed slightly. These PI/OMMT hybrid films are good candidates for potential solar cell flexible substrates.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 1985-1989
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.1985
• Online since: January 2013
• Authors: Yun Hua Lu, Zhi Zhi Hu, Guo Yong Xiao, Yan Dong, Hai Jun Chi
• Keywords: Hybrid Composite, Organo-Modified Montmorillonite, Polyimide, Property

References

[1] S. M. M. Alam. J Sci Res, Vol. 2(2010), p.99.

[2] J.H. Park, J.H. Kim, J.W. Park, J.H. Chang and C.S. Ha. J Nanosci Nanotech, Vol. 8(2008), p.1700.

[3] H.S. Jin and J.H. Chang. Macromol Res, Vol. 16(2008), p.503.

[4] U. Min, J.H. Chang. J Nanosci Nanotech, Vol. 11(2011), p.6404.

[5] J.S. Park, J.H. Chang. Polym Eng Sci, Vol. 49(2009), p.1357.

[6] P. S. G. Krishnan, M. Joshi, P. Bhargava, S. Valiyaveettil, and C. He. J Nanosci Nanotech, Vol. 5(2005), p.1148.

[7] U. Min, J.C. Kim, J.H. Chang. Polym Eng Sci, Vol. 51(2011), p.2143.

[8] I.H. Choi, J.H. Chang. Polym Adv Tech, Vol. 22(2011), p.682.

[9] J.G. Liu, Y. Nakamura, T. Ogura, Y. Shibasaki, S. Ando and M. Ueda. Chem Mater, Vol. 20(2008), p.273.

[10] U. Min, C.S. Yoon, J H Chang. J Appl Polym Sci, Vol. 126(2012), p. E2.

[11] Y H Yu, J M Yeh, S J Liou, Yen-Po Chang. Acta Mater, Vol. 52(2004), p.475.

[12] H L Tyan, K H Wei, T E Hsieh. J Polym Sci Part B: Polym Phy, Vol. 38(2000), p.2873.