Growth of Monolayered Poly(l - lactide) Lamellar Crystals on a Substrate

Won-Ki Lee; Jin-Kook Lee; Chang-Sik Ha

Macromolecular Research, Vol.11, No.6, 511-513, December, 2003

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Growth of Monolayered Poly(l - lactide) Lamellar Crystals on a Substrate

Won-Ki Lee, Jin-Kook Lee¹, and Chang-Sik Ha^{1, †}

Division of Chemical Engineering, Pukyong National University, San 100, Namgu, Busan 608-739, Korea
¹Department of Polymer Science & Engineering, Pusan National University, San 30, Kumjunggu, Busan 609-735, Korea

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Hydroxyl groups were introduced onto the surface of a silicon wafer by O₂ plasma treatment. Poly(l -lactide) (l -PLA) was attached onto the surface-modified silicon wafer by the ring-opening polymerization of l -lactide using the hydroxyl group as an initiator. Lamellar single crystals of l -PLA were grown directly on the l -PLA-attached silicon wafer from a 0.025% solution in acetonitrile at 5 ℃. A well-separated, lozenge-shaped, monolayered lamellar single crystal was prepared because the l -PLA-attached silicon wafer acts as an initial nucleus.

Keywords:plasma treatment;poly(l -lactide);single crystal.

[References]

Chanzy H, Comtat J, Dube M, Marchessault RH, Biopolymers, 18, 2459 (1979)
Ron E, Mathiowitz E, Mathiowitz A, Domb A, Langer R, Macromolecules, 24, 2278 (1991)
Scott G, Gilead D, Degradable Polymers, Chapman & Hill, London (1995)
Iwata T, Doi Y, Macromolecules, 31(8), 2461 (1998)
Lee WK, Iwata T, Abe H, Doi Y, Macromolecules, 33(26), 9535 (2000)
Lee WK, Doi Y, Ha CS, Macromol. Biosci., 1, 114 (2001)
Lee CW, Kimura Y, Macromol. Res., 11(1), 42 (2003)
Domb AJ, Langer R, J. Polym. Sci. A: Polym. Chem., 25, 3373 (1987)
Lee WK, Losito I, Gardella JA, Hicks WL, Macromolecules, 34(9), 3000 (2001)
Lee JS, Chae GS, An TK, Khang G, Cho SH, Lee HB, Macromol. Res., 11(3), 183 (2003)
Kalb B, Pennings AJ, Polymer, 21, 607 (1980)
Miyata T, Masuko T, Polymer, 38(16), 4003 (1997)
Morray M, Occhiello E, Carbassi F, Langmuir, 5, 872 (1989)
Geil PH, Polymer Single Crystals, John Wiley & Sons, New York (1965)
Reneker DH, Geil PH, J. Appl. Phys., 31, 1916 (1960)

[Related Articles]

[1] Chanzy H, Comtat J, Dube M, Marchessault RH, Biopolymers, 18, 2459 (1979)

[2] Ron E, Mathiowitz E, Mathiowitz A, Domb A, Langer R, Macromolecules, 24, 2278 (1991)

[3] Scott G, Gilead D, Degradable Polymers, Chapman & Hill, London (1995)

[4] Iwata T, Doi Y, Macromolecules, 31(8), 2461 (1998)

[5] Lee WK, Iwata T, Abe H, Doi Y, Macromolecules, 33(26), 9535 (2000)

[6] Lee WK, Doi Y, Ha CS, Macromol. Biosci., 1, 114 (2001)

[7] Lee CW, Kimura Y, Macromol. Res., 11(1), 42 (2003)

[8] Domb AJ, Langer R, J. Polym. Sci. A: Polym. Chem., 25, 3373 (1987)

[9] Lee WK, Losito I, Gardella JA, Hicks WL, Macromolecules, 34(9), 3000 (2001)

[10] Lee JS, Chae GS, An TK, Khang G, Cho SH, Lee HB, Macromol. Res., 11(3), 183 (2003)

[11] Kalb B, Pennings AJ, Polymer, 21, 607 (1980)

[12] Miyata T, Masuko T, Polymer, 38(16), 4003 (1997)

[13] Morray M, Occhiello E, Carbassi F, Langmuir, 5, 872 (1989)

[14] Geil PH, Polymer Single Crystals, John Wiley & Sons, New York (1965)

[15] Reneker DH, Geil PH, J. Appl. Phys., 31, 1916 (1960)