Generation of Graded Index Profile of Poly(methyl methacrylate) by a Photochemical Reaction

Hyun Chu Yun; Sang Hyuk Im; Duck Jong Suh; O Ok Park; Moo Hyun Kwon

Macromolecular Research, Vol.11, No.4, 236-240, August, 2003

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Generation of Graded Index Profile of Poly(methyl methacrylate) by a Photochemical Reaction

Hyun Chu Yun, Sang Hyuk Im, Duck Jong Suh, O Ok Park^†, and Moo Hyun Kwon¹

Center for Advanced Functional Polymers, Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-Dong, Yuseong-Gu, Daejeon 305-701, Korea
¹Department of Chemical Engineering, Woosuk University, 490 Hujung-ri, Samrae-eup, Wanju-gun, Jeonbuk 656-701, Korea

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Fabrication of a graded index profile was possible via photochemical reaction of cinnamoyl groups with 350 nm wavelength UV light to form crosslinked structures. Such structural change may induce the change in the refractive index. In order to generate graded index profile in the PMMA polymer optical fiber (POF) with cinnamoyl groups by photochemistry, a methyl methacrylate monomer containing a cinnamoyl functional group in the side chain were prepared. This monomer was then copolymerized with methylmethacrylate with various compositions not only to utilize advantages of poly(methyl methacrylate) but also to overcome the drawbacks of the cinnamate homopolymer. Changes of refractive indices were investigated with various contents of cinnamoyl group and varying irradiation time. Large change in the refractive index (Δ ≫ 0.01) and its proper profile shape (g ≫ 2.2) can be obtained by changing irradiation time.

Keywords:graded index;photochemical reaction of cinnamoyl groups;polymer optical fiber;PMMA

[References]

Kinoshita K, Horie K, Morino S, Nishikubo T, Appl. Phys. Lett., 22, 2940 (1997)
Kada T, Obara A, Watanabe T, Miyata S, Liang CX, Machida H, Kiso K, J. Appl. Phys., 87, 638 (2000)
Ivanov M, Todorov T, Nikolova L, Tomova N, Dragostinova V, Appl. Phys. Lett., 66, 2174 (1995)
Xie S, Natansohn A, Rochon P, Chem. Mater., 5, 403 (1993)
Taino N, Irie M, Jpn. J. Appl. Phys., 33, 1550 (1994)
Kim HK, Kang SJ, Choi SK, Min YH, Yoon CS, Chem. Mater., 11, 779 (1999)
Choe CR, Klingshirn C, Friedrich K, Macromol. Res., 10(4), 236 (2002)
Murase S, Kinoshita K, Horie K, Morino S, Macromolecules, 30(25), 8088 (1997)
Keiser G, Optical Fiber Communications, McGraw-Hill (1991)
Im SH, Suh DJ, Park OO, Cho H, Choi JS, Park JG, Hwang JT, Appl. Opt., 41, 1858 (2002)
Im SH, Suh DJ, Park OO, Cho H, Choi JS, Park JK, Hwang JT, Korean J. Chem. Eng., 19(3), 505 (2002)

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[1] Kinoshita K, Horie K, Morino S, Nishikubo T, Appl. Phys. Lett., 22, 2940 (1997)

[2] Kada T, Obara A, Watanabe T, Miyata S, Liang CX, Machida H, Kiso K, J. Appl. Phys., 87, 638 (2000)

[3] Ivanov M, Todorov T, Nikolova L, Tomova N, Dragostinova V, Appl. Phys. Lett., 66, 2174 (1995)

[4] Xie S, Natansohn A, Rochon P, Chem. Mater., 5, 403 (1993)

[5] Taino N, Irie M, Jpn. J. Appl. Phys., 33, 1550 (1994)

[6] Kim HK, Kang SJ, Choi SK, Min YH, Yoon CS, Chem. Mater., 11, 779 (1999)

[7] Choe CR, Klingshirn C, Friedrich K, Macromol. Res., 10(4), 236 (2002)

[8] Murase S, Kinoshita K, Horie K, Morino S, Macromolecules, 30(25), 8088 (1997)

[9] Keiser G, Optical Fiber Communications, McGraw-Hill (1991)

[10] Im SH, Suh DJ, Park OO, Cho H, Choi JS, Park JG, Hwang JT, Appl. Opt., 41, 1858 (2002)

[11] Im SH, Suh DJ, Park OO, Cho H, Choi JS, Park JK, Hwang JT, Korean J. Chem. Eng., 19(3), 505 (2002)