研究生: |
葉文亮 |
---|---|
論文名稱: |
新型溶解性聚(2,3-二苯基-對位亞苯乙烯)衍生物之合成、光物理性質及形態學之研究 Synthesis, Photophysical Properties and Morphology of an Alkoxy-Modified DP-PPV Derivative |
指導教授: | 陳信龍 |
口試委員: | |
學位類別: |
博士 Doctor |
系所名稱: |
工學院 - 化學工程學系 Department of Chemical Engineering |
論文出版年: | 2007 |
畢業學年度: | 96 |
語文別: | 英文 |
論文頁數: | 111 |
中文關鍵詞: | 聚(2,3-二苯基-對位亞苯乙烯) 、共軛高分子 、烷氧基 |
外文關鍵詞: | DP-PPV, conjugated polymer, alkoxy |
相關次數: | 點閱:2 下載:0 |
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Abstract
By means of chemical modification, flexible branched alkoxy chains were successfully attached to the para- site of the side phenyl groups of DP-PPV to obtain a new soluble fully conjugated PPV, named poly(2,3-di-[p-(2’-ethylhexoxy)phenyl]- 1,4-phenylenevinylene) (p-EHDP-PPV). Spectroscopic characterizations using UV, PL and PLE showed only the emission of single chromophore of this polymer in the solution state, indicating that the solubility of DP-PPV was significantly improved by attaching the alkoxy side chains. In the spin-coated film, the emission of the single chromophore with longer conjugating length was observed. In addition, the spectral feature showed the absence of the emission from the aggregate, which was usually observed in the alkoxy-modified PPV, revealing that the polymer chains were well-separated by the side chains. The performance of the single-layer ITO/PEDOT/ p-EHDP-PPV/Ca/Al LED device was also reported. The maximum luminescence and efficiency at 11 V was 3735 Cd/m2 and 0.57 Cd/A, respectively.
The structure of p-EHDP-PPV in the solution with THF and toluene and the morphology of the films cast from these solutions were further investigated by spectroscopic and X-ray scattering techniques. The emission of the single chromophore with slightly different conjugation length on varying the polymer concentration was observed for both solutions. However, the photoluminescent properties of the drop-cast films were strongly dependent on the solvent used. A new ground-state emitting species with lower energy level formed in the film as cast from THF solution. On basis of the SAXS results, the lower energy species was attributed to a lamellar structure (L1) with the interlamellar distance of 19.6 Å. Through high-temperature annealing, another lamellar mesophase (L2) with the interlamellar distance of 26.2 Å developed from the disordered phase and coexisted with the solvent-induced L1 phase. Analysis of the WAXS patterns revealed that these two lamellar mesophase had similar microstructure and were considered to form independently in the polymer film via different pathways.
Chapter 1
[1] Chiang, C. K.; Fincher, Jr. C. R.; Park, Y. W.; Heeger, A. J.; Shirakawa, H. Louis, E. J.; Gau, S. C.; MacDiarmid, A. G. Phys. Rev. Lett. 1977, 39, 1098.
[2] Shirakawa, H.; Louis, E. J.; MacDiarmid, A. G.; Chiang, C. K.; Heeger, A. J. J. Chem. Soc. Chem. Commun. 1977, 16, 578.
[3] Pope. M.; Kallmann, H.; Magnante, P. J. Chem. Phys. 1963, 38, 2042.
[4] Tang, C. W.; VanSlyke, S. A. Appl. Phys. Lett. 1987, 51, 913.
[5] Burroughes, J. H.; Bradley, D. D. C.; Brown, A. R.; Marks, R. N.;Mackay, K.; Friend, R. H.; Burns, P. L.; Holmes, A. B. Nature 1990, 347, 539.
[6] Wessling, R.; Zimmerman, R. U.S. Patent 3,401,152 1968
[7] Wessling, R.; Zimmerman, R. U.S. Patent 3,706,677 1972
[8] Wessling, R. J. Polym. Sci. Polym. Symp. 1985, 72, 55.
[9] Friend, R. H.; Gymer, R. W.; Holmes, A. B.; Burroughes, J. H.; Marks, R. N.; Taliani, C.; Bradley, D. D. C.; Dos Santos, D. A.; Brėdas, J. L.; Lődglund, M.; Salaneck, W. R. Nature 1999, 397, 121.
[10] Braun, D.; Heeger, A. J. Appl. Phys. Lett. 1991, 58, 1982.
[11] Braun, D.; Heeger, A. J. Thin Solid Films 1992, 216, 96.
[12] Fukuda, M.; Sawada, K.; Morita, S.; Yoshino, K. Synth. Met. 1991, 41, 855.
[13] Hwang, G. W.; Chen, S. A. J. Am. Chem. Soc. 1994, 116, 7939.
[14] Sirringhaus, H.; Tessler, N.; Friend, R. H. Science 1998, 280, 1741.
[15] Matsui, J.; Sato, Y.; Mikayama, T.; Miyashita, T. Langmuir 2007, 23, 8602.
[16] Sariciftci, N. S.; Smilowitz, L.; Heeger, A. J.; Wudl, F. Science 1992, 258, 1474.
[17] Shaheen, S. E.; Brabec, C. J.; Sariciftci, N. S.; Radinger, F.; Fromherz, T.; Hummelen, J. C. Appl. Phys. Lett. 2001, 78, 841.
[18] Atkins, P. W The Elements of Physical Chemistry Oxford University, New York, 1993.
[19] Chien, J. C. W. Polyacetylene: Chemistry, Physics, and Material Science Academic Press, Orlando, 1984.
[20] Krivoshei, I. V.; Skorobogatov, V. M.; Polyacetylene and polyarylenes: Synthesis and conductive Properties Gordon and Breach Science, 1991.
[21] Turro, N. J. Modern Molecular Photochemistry, University Science Books, California, 1991.
[22] Lakowicz, J. R. Principles of Fluorescence Spectroscopy, Kluwer Academic Plenum, New York, 1999.
[23] Jenekhe, S. A.; Osaheni, J. A. Science 1994, 265, 765.
[24] Pope, M.; Swenberg, C. E. Electronic Processes in Organic Crystals, Oxford university, New York, 1982.
[25] Pavia, D. L; Lampman, G. M.; Kriz, G. S. Introduction to Spectroscopy: a Guide for Students of Organic Chemistry, Harcourt College, 2001.
[26] Kőhler, A.; Gruner, J.; Friend, R. H.; Műllen, K.; Scherf, U.; Chem. Phys. Lett. 1995, 243, 456.
[27] Lemmer, U.; Heun, S.; Mahrt, R. F.; Scherf. U.; Hopmeier, M.; Siegner, U.; Gobel, E. O.; Műllen, K.; Bassler, H. Chem. Phys. Lett. 1995, 240, 373.
[28] Blatchford, J. W.; Jessen, S. W.; Lin, L. B.; Gustafson, T. L.; Fu, D. K.; Wang. H. L; Swager, T. M.; MacDiarmid, A. G.; Epstein, A. J. Phys. Rev. B 1996, 54, 9180.
[29] Blatchford, J. W.; Gustafson, T. L.; Epstein, A. J. Wanden Bout, D. A.; Kerimo, J.; Kiggins, D. A.; Barbara, P. F.; Fu, D. K.; Swager, T. M.; MacDiarmid, A. G. Phys. Rev. B 1996, 54, R3683.
[30] Hsu, J. H.; Fann, W. S.; Tsao, P. H.; Chuang, K. R.; Chen, S. A. J. Phys. Chem. A 1999, 103, 2375.
[31] Li, Y. C.; Chen, K. B.; Chen, H. L.; Hsu, C. S.; Tsao, C. S.; Chen, J. H.; Chen, S. A. Langmuir 2006, 22, 11009.
[32] Nguyen, T. Q.; Wu, J.; Doan, V.; Schwartz, B. J. J. Chem. Phys. 1999, 110, 4068.
[33] Nguyen, T. Q.; Martini, I. B.; Liu, J.; Schwartz, B. J. J. Phys. Chem. B 2000, 104, 237.
[34] Shi, Y.; Liu, J.; Yang, Y. J. Appl. Phys. 2000, 87, 4254.
[35] Liu, J.; Guo, T. F.; Yang, Y. J. J. Appl. Phys. 2002, 91, 4254.
[36] Chen, S. H.; Su, A. C.; Chang, C. S.; Chen, H. L.; Ho, D. L.; Tsao, C. S.; Peng, K. Y.; Chen, S. A. Langmuir 2004, 20, 8909.
[37] Nguyen, T. Q.; Wu, J.; Doan, V.; Schwartz, B. J.; Tolbert, S. H. Science 2000, 288, 652.
[38] Becker, H.; Spreitzer, H.; Ibrom, K.; Kreuder, W. Macromolecules 1999, 32, 4925.
[39] Padmanaban, G.; Ramakrishnan, S. J. Am. Chem. Soc. 2000, 122, 2244.
[40] Peng, K. Y.; Chen, S. A.; Fann, W. S. J. Am. Chem. Soc. 2001, 123, 11388.
[41] Roe, R. J. Methods of X-ray and Neutron Scattering in Polymer Science Oxford, New York, 2000.
[42] Lindner, P.; Zemb, Th. Neutrons, X-rays and Light Scattering methods applied to Soft Condensed Matter Elsevier, New York, 2002.
[43] Higgins, J. S.; Benoit, H. C. Polymers and Neutron Scattering, Oxford, New York, 1994.
[44] Jen, K. Y.; Miller, G.G.; Elsenbaumer, R. L. J. Chem. Soc., Chem. Commun. 1986, 1346.
[45] Chen, T. A.; Wu, X.; Rieke, R. D. J. Am. Chem. Soc. 1995, 117, 233.
[46] Mo, Z.; Lee, K. B.; Moon, Y. B.; Kobayashi, M.; Heeger, A. J.; Wudl, F. Macromolecules 1985, 18, 1972.
[47] McCullough, R. D.; Tristram-Nagle, S.; Williams, S. P.; Lowe, R. D.; Jayaraman, M. J. Am. Chem. Soc. 1993, 115, 4910.
[48] Prosa, T. J.; Winokur, M. J.; McCullough, R. D. Macromolecules 1996, 29, 3654.
[49] Bolognesi, A.; Porzio, W.; Provasoli, F.; Ezquerra, T. Makromol. Chem. 1993, 194, 817.
[50] Hsieh, B. R.; Yu, Y.; VanLaeken, A. C.; Lee, H. Macromolecules 1997, 30, 9084
[51] Yang, C. Y.; Hide, F.; Díaz-García, M. A.; Heeger, A. J.; Cao, Y. Polymer 1998, 39, 2299.
[52] Chen, S. H.; Su, A. C.; Huang, Y. F.; Su, C. H.; Peng, K. Y.; Chen, S. A. Macromolecules 2002, 35, 4229.
[53] Chen, S. H.; Su, A. C.; Chou, H. L.; Peng, K. Y.; Chen, S. A. Macromolecules 2004, 37, 167.
[54] Jeng, U.; Hsu, C. H.; Sheu, H. S.; Lee, H. Y.; Inigo, A. R.; Xhiu, H. C.; Fann, W. S.; Chen, S. H.; Su, A. C.; Lin, T. L.; Peng, K. Y.; Chen, S. A. Macromolecules 2005, 38, 6566.
[55] Chen, S. H.; Su, A. C.; Han, S. R.; Chen, S. A.; Lee, Y. Z. Macromolecules 2004, 37, 181.
[56] Chen, S. H.; Su, C. H.; Su, A. C.; Chen, S. A. J. Phys. Chem. B 2004, 108, 8855.
[57] Hsieh, B. R.; Antoniadis, H.; Bland, D. C.; Feld, W. A. Adv. Mater. 1995, 7, 36.
[58] Wan, W. C.; Antoniadis, H.; Choong, V. E.; Razafitrimo, H.; Gao, Y.; Feld, W. A.; Hsieh, B. R. Macromolecules 1997, 30, 6567.
[59] Hsieh, B. R.; Yu, Y.; Forsythe, E. W.; Schaaf, G. M.; Feld, W. A. J. Am. Chem. Soc. 1998, 120, 231.
[60] Huang, Y. F., Ph. D Thesis, Institute of Materials Science and Engineering, National Sun Yat-sen University, 2002.
[61] Fukuda, M.; Sawada, K.; Yoshino, K. Jpn. J. Appl. Phys. 1989, 28, L1433.
[62] Grell, M.; Bradley, D. D. C.; Inbasekaran, M.; Woo, E. P. Adv. Mater. 1997, 9, 798.
[63] Grell, M.; Bradley, D. D. C.; Long, X.; Chamberlain, T.; Inbasekaran, M.; Woo, E. P.; Soliman, M. Acta Polym. 1998, 49, 439.
[64] Grell, M.; Bradley, D. D. C.; Ungar, G.; Hill, J.; Whitehead, K. S. Macromolecules, 1999, 32, 5810.
[65] Cadby, A. J.; Lane, P. A.; Mellor, H.; Martin, S. J.; Grell, M.; Giebeler, C.; Bradley, D. D. C. Phys. Rev. B 2000, 62, 15604.
[66] Chen, S. H.; Chou, H. L.; Su, A. C.; Chen, S. A. Macromolecules 2004, 37, 6833.
[67] Chen, S. H.; Su, A. C.; Su, C. H.; Chen, S. A. Macromolecules 2005, 38, 379.
[68] Chen, S. H.; Su, A. C.; Chen, S. A. J. Phys. Chem. B 2005, 109, 10067.
[69] Grell, M.; Knoll, W.; Lupo, D.; Meisel, A.; Miteva, T.; Neher, D.; Nothofer, H. G.; Scherf, U.; Yasuda, A. Adv. Mater. 1999, 11, 671.
[70] Lieser, G.; Oda, M.; Miteva, T.; Meisel, A.; Nothofer, H. G.; Scherf, U. Macromolecules 2000, 33, 4490.
[71] Knaapila, M.; Lyons, B. P.; Kisko, K.; Foreman, J. P.; Vainio, U.; Mihaylova, M.; Seeck, O. H.; Pålsson, L. O.; Serimaa, R.; Torkkeli, M.; Monkman, A. P. J. Phys. Chem. B 2003, 107, 12425.
[72] Knaapila, M.; Kisko, K.; Lyons, B. P.; Stepanyan, R.; Foreman, J. P.; Seeck, O. H.; Vainio, U.; Pålsson, L. O.; Serimaa, R.; Torkkeli, M.; Monkman, A. P. J. Phys. Chem. B 2004, 108, 10711.
[73] Knaapila, M.; Stepanyan, R.; Lyons, B. P.; Torkkeli, M.; Hase, T. P. A.; Serimaa, R.; Güntner, R.; Seeck, O. H.; Scherf, U.; Monkman, A. P. Macromolecules 2005, 38, 2744.
[74] Knaapila, M.; Stepanyan, R.; Lyons, B. P.; Torkkeli, M.; Monkman, A. P. Adv. Funct. Mater. 2006, 16, 599.
[75] Knaapila, M.; Stepanyan, R.; Torkkeli, M.; Lyons, B. P.; Ikonen, T. P.; Almásy, L.; Foreman, J. P.; Serimaa, R.; Güntner, R.; Scherf, U.; Monkman, A. P. Phys. Rev. E 2005, 71, 41802.
Chapter 2
[1] Burroughes, J. H.; Bradley, D. D. C.; Brown, A. R.; Marks, R. N.; Mackay, K.; Friend, R. H.; Burns, P. L.; Holmes, A. B. Nature 1990, 347, 539.
[2] Friend, R. H.; Greenham, N. C. in Handbook of conducting Polymers, 2nd ed.; Skotheim, T. A.; Elsenbaumer, R. L.; Reynolds, J. R.; Dekker, M. New York, 1998, vol. 2 p 823.
[3] Braun, D.; Heeger, A. J. Appl. Phys. Lett., 1991, 58, 1982;
[4] Braun, D.; Heeger, A. J. Thin Solid Films, 1992, 216, 96.
[5] Yang, Z.; Sokolik, I.; and Karasz, F. E. Macromolecules 1993, 26, 1188;
[6] Zheng, M.; Ding, L.; Gürel, E. E.; Karasz, F. E. J. Polym. Sci. Part A: Polym. Chem., 2002, 40, 235.
[7] Paulvannan, K.; Feld, W. A. Polym. Preprints 1991, 32, 192.
[8] Hsieh, B. R.; Feld, W. A. Polym. Preprints 1993, 34, 410.
[9] Hsieh, B. R.; Antoniadis, H.; Bland, D. C.; Feld, W. A. Adv. Mater., 1995, 7, 36.
[10] Wan, W. C.; Antoniadis, H.; Choong, V. E.; Razafitrimo, H.; Gao, Y.; Feld, W. A.; Hsieh, B. R. Macromolecules 1997, 30, 6567;
[11] Hsieh, B. R.; Yu, Y.; Forsythe, E. W.; Schaaf, G. M.; Feld W. A. J. Am. Chem. Soc., 1998, 120, 231.
[12] Spreitzer, H.; Becker, H.; Kluge, E.; Kreuder, W.; Schenk, H.; Demandt, R.; Schoo, H. Adv. Mater., 1998, 10, 1340.
[13] Chen, K. B.; Li, H. C.; Chen, C. K.; Yang, S. H.; Hsieh, B. R.; Hsu, C. S. Macromolecules 2005, 38, 8617.
[14] Mueller-Westerhoff U.T.; Zhou M.; J. Org. Chem., 1994, 59, 4988.
[15] Hsieh, B. R.; Yu, Y.; VanLaeken, A. C.; Lee, H. Macromolecules 1997, 30, 8094.
[16] Peng, K. Y.; Chen, S. A.; Fann, W. S.; J. Am. Chem. Soc., 2001, 123, 11388.
[17] Nguyen, T. Q.; Doan, V.; Schwartz B. J. J. Chem. Phys., 1999, 110, 4068.
[18] Yang, S. H.; Chen, J. T.; Li, A. K.; Huang, C. H.; Chen, K. B.; Hsieh, B. R.; Hsu, C. S. Thin Solid Films, 2005, 477, 73.
[19] Yu, L. S.; Chen, S. A. Synth. Met., 2002, 132, 81.
Chapter 3
[1] Friend, R. H.; Gymer, R. W.; Holmes, A. B.; Burroughes, J. H.; Marks, R. N.; Taliani, C.; Bradley, D. D. C.; Dos Santos, D. A.; Brėdas, J. L.; Lődglund, M.; Salaneck, W. R. Nature, 1999, 397, 121.
[2] Burroughes, J. H.; Bradley, D. D. C.; Brown, A. R.; Marks, R. N.;Mackay, K.; Friend, R. H.; Burns, P. L.; Holmes, A. B. Nature, 1990, 347, 539.
[3] Jenekhe, S. A.; Osaheni, J. A.; Science 1994, 265, 765.
[4] Nguyen, T. Q.; Doan, V.; Schwartz, B. J. J. Chem. Phys. 1999, 110, 4068.
[5] Hsu, J. H.; Fann, W. S.; Tsao, P. H.; Chuang, K. R. Chen, S. A. J. Phys. Chem. A 1999, 103, 2375.
[6] Yan, M; Rothberg, L. J.; Kwock, E. W.; Miller, T. M. Phys. Rev. Lett. 1995, 75, 1992.
[7] Miao, Y.-J.; Bazan, G. C. Macromolecules 1997, 30, 7414.
[8] Aguiar, M.; Hu, B.; Karasz, F. E.; Akcelrud, L. Macromolecules 1996, 29, 3161.
[9] Peng, K. Y.; Chen, S. A.; Fann, W. S. J. Am. Chem. Soc., 2001, 123, 11388.
[10] Shi, Y.; Liu, J.; Yang, Y. J. Appl. Phys., 2000, 87, 4254.
[11] Liu, J.; Shi, Y.; Ma, L.; Yang, Y. J. Appl. Phys., 2000, 88, 605.
[12] Schwartz, B. J. Annu. Rev. Phys. Chem. 2003 54 141.
[13] Holzer, W.; Penzkofer, A.; Tillmann, H.; Hörhold, H. -H.; Synth. Met., 2004, 140, 155.
[14] Chen, S. H.; Su, A. C.; Chang, C. S.; Chen, H. L.; Ho, Derek L.; Tsao, C. S.; Peng, K. Y.; Chen, S. A. Langmuir 2004, 20, 8909.
[15] Prest, W. M.; Luca, D. J. J. Appl. Phys., 1980, 51, 5170.
[16] Zhokhavets, U.; Gobsch, G.; Hoppe, H.; Sariciftci, N. S.; Thin Solid Films, 2004, 451-452, 69.
[17] Losurdo, M.; Giangregorio, M. M.; Capezzuto, P.; Bruno, G.; Babudri, F.; Colangiuli, D.; Farinola, G. M.; Naso F. Macromolecules 2003, 36, 4492.
[18] Grando, D.; Banfi, G.; Fortusini, D.; Ricceri, R.; Sottini, S. Synth. Met., 2003, 139, 863.
[19] Koynov, K.; Bahtiar, A.; Ahn, T.; Cordeiro, R. M.; Hörhold, H. -H.; Bubeck, C. Macromolecules 2006, 39, 8692.
[20] Chen, S. H.; Su, C. H.; Su, A. C.; Chen, S. A. J. Phys. Chem. B 2004, 108, 8855.
[21] Chen, S. H.; Su, A. C.; Huang, Y. F.; Su, C. H.; Peng, K. Y.; Chen, S. A. Macromolecules 2002, 35, 4229.
[22] Chen, S. H.; Su, A. C.; Han, S. R.; Chen, S. A.; Lee, Y. Z. Macromolecules 2004, 37, 181.
[23] Jeng, U.; Hsu, C. H.; Sheu, H. S.; Lee, H. Y.; Inigo, A. R.; Xhiu, H. C.; Fann, W. S.; Chen, S. H.; Su, A. C.; Lin, T. L.; Peng, K. Y.; Chen, S. A. Macromolecules 2005, 38, 6566.
[24] Arnautov, S. A.; Nechvolodova, E. M.; Bakulin, A. A.; Elizarov, S. G.; Khodarev, A. N.; Martyanov, D. S.; Paraschuk, D. Yu. Synth. Met., 2004, 147, 287.
[25] Yeh, W. L.; Chen, H. L.; Chen, S. A. Synth. Met., 2007, 157, 407.
[26] Chiu, C. C.; Lin, K. F.; Chou, H. L. J. Polym. Sci. Part A: Polym. Chem., 2003, 41, 2180.
[27] Gettinger C. L.; Heeger, A. J.; Drake, J. M.; Pine, D. J. J. Chem. Phys., 1994, 101, 1673.
[28] Moratti, S. C.; Cervini, R.; Holmes, A. B.; Baigent, D. R.; Friend, R. H.; Greenham, N. C.; Grüner, J.; Hamer, P. J. Synth. Met., 1995, 71, 2117.
[29] Spreitzer, H.; Becker, H.; Kiuge, E.; Kreuder, W.; Schenk, H.; Demandt, R.; Schoo, H. Adv. Mater., 1998, 10, 1340.
[30] Wan, W. C.; Antoniadis, H.; Choong, V. E.; Razafitrimo, H.; Gao, Y.; Feld, W. A.; Hsieh, B. R. Macromolecules 1997, 30, 6567.
[31] Hsieh, B. R.; Yu, Y.; Forsythe, E. W.; Schaaf, G. M.; Feld, W. A. J. Am. Chem. Soc., 1998, 120, 231.
[32] Peng, K. Y.; Chen, S. A.; Fann, W. S.; Chen S. H.; Su, A. C. J. Phys. Chem. B, 2005, 109, 9368.
[33] Grell, M., Bradley, D. D. C.; Long, X.; Chamberlain, T.; InbaseKaran, M.; Woo, E. P.; Soliman, M. Acta Polym., 1998, 49, 439.
[34] Grell, M.; Bradley, D. D. C.; Ungar, G.; Hill, J.; Whitehead, K. S. Macromolecules, 1999, 32, 5810.
[35] Chen, S. H.; Chou, H. L.; Su, A. C.; Chen, S. A. Macromolecules, 2004, 37, 6833.
[36] Chen, S. H.; Su, A. C.; Su, C. H.; Chen, S. A. Macromolecules, 2005, 38, 379.
[37] Ariu, M.; Lidzey, D. G.; Sims, M.; Cadby, A. J.; Lane, P. A.; Bradley, D. D. C. J. Phys.: Condens. Matter, 2002, 14, 9975.
[38] Chen, S. H.; Su, A. C.; Chen, S. A. J. Phys. Chem. B, 2005, 109, 10067.
[39] Gieniewski, C.; Moore, R. S. Macromolecules, 1969, 2, 385.
[40] Lieser, G.; Oda, M.; Miteva, T.; Meisel, A.; Nothofer, H.-G.; Scherf, U. Macromolecules, 2000, 33, 4490.
[41] Huang, Y. F., Ph. D Thesis, Institute of Materials Science and Engineering, National Sun Yat-sen University, 2002.
[42] Van Krevelen, D. W. Properties of polymers, 3rd Ed.; Elsevier: Amsterdam, 1997.