Abstract
We describe a method of fabricating microporous films through pattern photopolymerization induced phase separation in a mixture of solvent/monomer using multi-wave mixing, i.e., four-wave mixing through interference of two horizontal and two vertical waves. The simulation on the microporous forming process was undertaken in the framework of the time-dependent Ginzburg-Landau (TDGL) Model B equations coupled with the reaction kinetic equation of photopolymerization. In the total free energy description, Flory-Huggins free energy of mixing was combined with the elastic free energy of the network. The calculated results showed that the microporous size, shape, and spacing of the micropores depend on the angle of interference and the reaction rate controlled by the incident UV intensity.
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Wang, H., Huang, H., Wunder, S.L., J. Electrochem. Soc., 147, 2853 (2001).
Mehta, R.H., Madsen, D.A., Kalika, D.S., J. Membrane Sci., 107(1-2), 93 (1995).
Atkins, T.W., Biomaterials, 18(2), 173 (1997).
Mendelsohn, J. D., Barrett, C. J., Chan, V. V., Pal, A. J., Mayes, A. M., Rubner, M. F., Langmuir, 16(11), 5017 (2000).
Raab, M., Åcudla, J., Kozlov, A. G., Lavrentyev, V. K., Elyashevich, G. K., J. Appl. Poly. Sci., 80(2), 214 (2001).
Feng, C., Kimura, Y., Polymer, 37(4), 573 (1996).
Mizutani, Y., Nago, S., J. Appl. Polym. Sci., 72(11), 1489 (1999).
Pitois, O, B Francois, Eur. Phys. J. B, 8(2), 225 (1999).
Hatori, H., Yamada, Y., Shiraishi, M., J. Appl. Polym. Sci., 57(7), 871 (1995).
Yan, Y., Hoshino, Y., Duan, Z., Chaudhuri, S.R., Sarkar, A., Chem. of Mater., 9(11), 2583 (1997).
Lin, W.J., Lu, C.H., J. of Membrane Sci., 198(1), 109 (2002).
Kahle, C.F., Ind. & Engi. Chem. Rese., 40(1), 33 (2001).
Mitrofanov, A. V., J. MoscowPhys. Soc., 9(2), 147 (1999).
Moore, J. A., Choi, J.O., Mater. Res. Soc. Symp. Proc., 158, 39 (1990).
Turberfield, A. J., M.R.S. Bulletin, 26, 632 (2001)
Kyu, T., Nwabunma, N., Macromolecule, 34, 9168 (2001).
Nwabunma, D., Chiu, H.-W., Kyu, T., J. Chem. Phys., 113, 6429 (2000).
Flory, P.J., J.Chem. Phys., 10, 51 (1941).
Huggins, M.L., J. Chem. Phys., 9, 440 (1941).
Dusek, K., J. Polym. Sci. C, 16, 1289 (1967).
Doi, M. and Edwards, S. F., “Theory of Polymer Dynamics”, Academic Press, New York, 1986.
Thaweephan, P., Meng, S., Sigalov, G., Kim, H.K., Choi, S.H., Kyu, T., J. Polym. Sci. Part B: Polym. Phys., 39, 1605 (2001).
Flory, P.J., J. Chem. Phys., 18, 108 (1950).
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Meng, S., Nwabunma, D. & Kyu, T. Formation of Microporous Films via Pattern Photo-Polymerization Induced Phase Separation. MRS Online Proceedings Library 709, 661 (2001). https://doi.org/10.1557/PROC-709-CC6.6.1
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DOI: https://doi.org/10.1557/PROC-709-CC6.6.1