Microphase-Separated Structure of Triblock Copolymer Composed of Poly(ε-benzyloxycarbonyl L-lysine) as the Hydrophobic Part and Poly(ethylene glycol) as the Hydrophilic Part

Chong-Su Cho; Joong-Kuen Kwon

Korea Polymer Journal, Vol.7, No.3, 208-212, June, 1999

Chong-Su Cho^†, and Joong-Kuen Kwon¹

Division of Biological Resources and Materials Engineering, Seoul National University, Suwon 441-744, Korea
¹Department of Chemical Engineering, Chosun College of Science and Technology, Kwangju 501-759, Korea

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ABA-type block copolymer composed of poly(ε-benzyloxycarbonyl L-lysine)(PCLL) as the hydrophobic part and poly(ethylene glycol)(PEG) as the hydrophilic one was synthesized and its microstructure was investigated by differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and dynamic mechanical thermal analysis (DTMA). From their results, the block copolymer revealed microphase-separated structrure. The T_gS of PCLL obtained by DSC were compared with those of PCLL obtained by DMTA.

[References]

Goodman I, Developments in Block Copolymers-1, Elsevier Applied Science Publishers, London and New York, pp. 127-216 (1985)
Okano T, Nishiyama S, Shinohara I, Akaike T, Sakurai Y, Kataoka K, Tsuruta T, J. Biomed. Mater. Res., 15, 393 (1981)
Okano T, Aoyagi T, Kataoka K, Abe K, Sakurai Y, Shimada M, Shinohara I, J. Biomed. Mater. Res., 20, 919 (1986)
Cho CS, Park KH, Polym.(Korea), 14(6), 602 (1990)
Yui N, Tanaka J, Sanui K, Ogata N, Kataoka K, Okano T, Sakurai Y, Polym. J., 16, 119 (1984)
Cho CS, Jo BW, Kwon JK, Komoto T, Macromol. Chem. Phys., 195, 2195 (1994)
Fuller WD, Verlander MS, Goodman M, Biopolymers, 15, 869 (1976)
Trent JS, Macromolecules, 17, 2930 (1984)

[1] Goodman I, Developments in Block Copolymers-1, Elsevier Applied Science Publishers, London and New York, pp. 127-216 (1985)

[2] Okano T, Nishiyama S, Shinohara I, Akaike T, Sakurai Y, Kataoka K, Tsuruta T, J. Biomed. Mater. Res., 15, 393 (1981)

[3] Okano T, Aoyagi T, Kataoka K, Abe K, Sakurai Y, Shimada M, Shinohara I, J. Biomed. Mater. Res., 20, 919 (1986)

[4] Cho CS, Park KH, Polym.(Korea), 14(6), 602 (1990)

[5] Yui N, Tanaka J, Sanui K, Ogata N, Kataoka K, Okano T, Sakurai Y, Polym. J., 16, 119 (1984)

[6] Cho CS, Jo BW, Kwon JK, Komoto T, Macromol. Chem. Phys., 195, 2195 (1994)

[7] Fuller WD, Verlander MS, Goodman M, Biopolymers, 15, 869 (1976)

[8] Trent JS, Macromolecules, 17, 2930 (1984)