Reaction Kinetics for the Synthesis of Oligomeric Poly(lactic acid)

Dong Keun Yoo; Dukjoon Kim; Doo Sung Lee

Macromolecular Research, Vol.13, No.1, 68-72, February, 2005

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Reaction Kinetics for the Synthesis of Oligomeric Poly(lactic acid)

Dong Keun Yoo, Dukjoon Kim^†, and Doo Sung Lee¹

Department of Chemical Engineering, Polymer Technology Institute, Sungkyunkwan University, 300 Cheoncheon, Jangan, Suwon, Gyeonggi 440-746, Korea
¹Department of Polymer Engineering, Polymer Technology Institute, Sungkyunkwan University, 300 Cheoncheon, Jangan, Suwon, Gyeonggi 440-746, Korea

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A low-molecular-weight poly(lactic acid) was synthesized through the condensation reaction of L-lactic acid. The effects that the catalyst and temperature have on the reaction rate were studied to determine the optimum reaction conditions. The reaction kinetics increased with temperature up to 210 oC, but no further increase was observed above this temperature. Among a few selective catalysts, sulfuric acid was the most effective because it maximized the polymerization reaction rate. Reduction of the pressure was another important factor that enhanced this reactions kinetics.

Keywords:poly(lactic acid);reaction kinetics;catalysis;depolymerization

[References]

Mainilvarlet P, Rahm R, Gogolewski S, Biomaterials, 18, 257 (1997)
Hoogsteen W, Postema AR, Pennings AJ, Brinke GT, Macromolecules, 23, 634 (1990)
Dorough GL, US Pat. 1995970 (1935)
Ajoika M, Enomoto K, Suzuki K, Yamaguchi A, J. Environ. Polym. Degrad., 3, 225 (1995)
Ajoika M, Enomoto K, Suzuki K, Yamaguchi A, Bull. Chem. Soc. Jpn., 68, 2125 (1995)
Storey RF, Wiggins JS, Puckett AD, J. Polym. Sci. A: Polym. Chem., 32(12), 2345 (1994)
Buchholz B, US Pat. 5302694 (1994)
Bonsignore PV, US Pat. 5470944 (1995)
Inata H, Mastumura S, J. Appl. Polym. Sci., 30, 3325 (1985)
Aharoni SM, Largman T, US Pat. 4417031 (1983)
Enomoto K, US Pat. 5310865 (1994)
Filachione EM, Fisher CH, Ind. Eng. Chem., 36, 223 (1944)
Hiltunen K, Seppala JV, J. Appl. Polym. Sci., 67(6), 1011 (1998)
Leenslag JW, Pennings AJ, Macromol. Chem., 188, 1809 (1978)
Kohn FE, VanDenBerg JWA, Ridder VD, Feijen J, J. Appl. Polym. Sci., 29, 4265 (1984)
Kricheldorf HR, Lee SR, Polymer, 36(15), 2995 (1995)
Shin GI, Kim JH, Kim SH, Kim YH, Korea Polym. J., 5(1), 19 (1997)
Hiltunen K, Seppala JV, Harkonen M, Macromolecules, 30(3), 373 (1997)
Hyon SH, Jamshidi K, Ikada Y, Biomaterials, 18(22), 1503 (1997)
Espartero JL, Rashkov I, Li SM, Manolova N, Vert M, Macromolecules, 29(10), 3535 (1996)

[Referenced By]

[Related Articles]

[1] Mainilvarlet P, Rahm R, Gogolewski S, Biomaterials, 18, 257 (1997)

[2] Hoogsteen W, Postema AR, Pennings AJ, Brinke GT, Macromolecules, 23, 634 (1990)

[3] Dorough GL, US Pat. 1995970 (1935)

[4] Ajoika M, Enomoto K, Suzuki K, Yamaguchi A, J. Environ. Polym. Degrad., 3, 225 (1995)

[5] Ajoika M, Enomoto K, Suzuki K, Yamaguchi A, Bull. Chem. Soc. Jpn., 68, 2125 (1995)

[6] Storey RF, Wiggins JS, Puckett AD, J. Polym. Sci. A: Polym. Chem., 32(12), 2345 (1994)

[7] Buchholz B, US Pat. 5302694 (1994)

[8] Bonsignore PV, US Pat. 5470944 (1995)

[9] Inata H, Mastumura S, J. Appl. Polym. Sci., 30, 3325 (1985)

[10] Aharoni SM, Largman T, US Pat. 4417031 (1983)

[11] Enomoto K, US Pat. 5310865 (1994)

[12] Filachione EM, Fisher CH, Ind. Eng. Chem., 36, 223 (1944)

[13] Hiltunen K, Seppala JV, J. Appl. Polym. Sci., 67(6), 1011 (1998)

[14] Leenslag JW, Pennings AJ, Macromol. Chem., 188, 1809 (1978)

[15] Kohn FE, VanDenBerg JWA, Ridder VD, Feijen J, J. Appl. Polym. Sci., 29, 4265 (1984)

[16] Kricheldorf HR, Lee SR, Polymer, 36(15), 2995 (1995)

[17] Shin GI, Kim JH, Kim SH, Kim YH, Korea Polym. J., 5(1), 19 (1997)

[18] Hiltunen K, Seppala JV, Harkonen M, Macromolecules, 30(3), 373 (1997)

[19] Hyon SH, Jamshidi K, Ikada Y, Biomaterials, 18(22), 1503 (1997)

[20] Espartero JL, Rashkov I, Li SM, Manolova N, Vert M, Macromolecules, 29(10), 3535 (1996)