Water-induced surface structure of poly (dimethylsiloxane)-containing block copolymers

Nam-Ju Jo; Jae Hwan Chun; Kwon Taek Lim; Ei-Sup Jang; Won-Ki Lee

Macromolecular Research, Vol.21, No.7, 821-825, July, 2013

DOI10.1007/s13233-013-1092-8 Export Citation

Water-induced surface structure of poly (dimethylsiloxane)-containing block copolymers

Nam-Ju Jo, Jae Hwan Chun, Kwon Taek Lim¹, Ei-Sup Jang², and Won-Ki Lee^{2, †}

Department of Polymer Science and Engineering, Pusan National University, Busan, 609-735, Korea
¹Department of Imaging System Engineering, Pukyong National University, Busan, 608-739, Korea
²Department of Polymer Engineering, Pukyong National University, Busan, 608-739, Korea

E-mail:

Two triblock copolymers, polyester-b-poly(dimethylsiloxane) (PDMS)-b-polyester, were synthesized by the ring-opening polymerization with both hydrophobic and water-repellent hydroxyl-terminated PDMS and hydrolytically degradable ester monomers. The T g s of the polyester blocks were controlled by ?-caprolactone/lactide mixture or lactide only. The surface composition of the triblock copolymers was measured by angle-dependent electron: X-ray photoelectron spectroscopy. The results showed that the PDMS block with a low surface energy in the copolymers was quite segregated in the surface region; the copolymer films showed significantly higher mole fractions of PDMS (0.78?0.86) at a low takeoff angle compared with their bulk mole fractions (0.015?0.02). When the films were exposed to water at 20 °C for 70 min, the mole fractions of surface PDMS were decreased to 0.3?0.5 because of the water-repellent hydrophobicity and the chain mobility of both blocks.

Keywords:triblock copolymers;poly(dimethylsiloxane) (PDMS);surface energy;water;chain mobility

[References]

Yilgor I, Steckle WP, Yilgor E, Freelin RG, Riffle JS, J. Polym. Sci. A: Polym. Chem., 27, 3673 (1989)
Van Krevelen DW, in Properties of Polymers, Elsevier Science Co. Inc., New York, 1990, p 166.
Lee WK, Park SB, Lee JK, Macromol. Res., 6, 128 (2003)
Gordin C, Delaite C, Bistac S, Schuller AS, Rusu D, Rusu M, Polym. Test, 28, 446 (2009)
Chen X, Gardella JA, Cohen RE, Macromolecules, 27(8), 2206 (1994)
Lee WK, Cho WJ, Ha CS, Takahara A, Kajiyama T, Polymer, 36(6), 1229 (1995)
Yoon SY, Lee JK, Chung I, Park SS, Lee WK, Macromol. Symp., 249, 431 (2007)
Clark DT, Peeling JO, Malley JM, J. Polym. Sci. A: Polym. Chem., 14, 543 (1976)
Ho T, Wynne KJ, Macromolecules, 25, 3521 (1992)
Akesso L, Navabpour P, Teer D, Pettitt ME, Callow ME, Liu C, Su XJ, Wang S, Zhao Q, Donik C, Kocijan A, Jenko M, Callow JA, Appl. Surf. Sci., 255(13-14), 6508 (2009)
Chen X, Gardella JA, Kumler PL, Macromolecules, 26, 4601 (1993)
Novak I, Sysel P, Zemek J, Spirkova M, Velic D, Aranyosiova M, Florian S, Pollak V, Kleinova A, Lednicky F, Janigova I, Eur. Polym. J., 45, 57 (2009)
Erbil HY, Yasar B, Suzer S, Baysal BM, Langmuir, 13(20), 5484 (1997)
Lee WK, Compos. Interfaces, 13(2-3), 159 (2006)
Kojima K, Gore CR, Marvel CS, J. Polym. Sci. A: Polym. Chem., 4, 2325 (1966)
Chen J, Ph D. Dissertation, Surface Composition and Morphology Studies of Siloxane Multicomponent Polymers: Effects of Structure and Processing, State University of New York, Buffalo, 1998.
Rahman MM, Chun HH, Park H, Macromol. Res., 19(1), 8 (2011)

[Referenced By]

[Related Articles]

[1] Yilgor I, Steckle WP, Yilgor E, Freelin RG, Riffle JS, J. Polym. Sci. A: Polym. Chem., 27, 3673 (1989)

[2] Van Krevelen DW, in Properties of Polymers, Elsevier Science Co. Inc., New York, 1990, p 166.

[3] Lee WK, Park SB, Lee JK, Macromol. Res., 6, 128 (2003)

[4] Gordin C, Delaite C, Bistac S, Schuller AS, Rusu D, Rusu M, Polym. Test, 28, 446 (2009)

[5] Chen X, Gardella JA, Cohen RE, Macromolecules, 27(8), 2206 (1994)

[6] Lee WK, Cho WJ, Ha CS, Takahara A, Kajiyama T, Polymer, 36(6), 1229 (1995)

[7] Yoon SY, Lee JK, Chung I, Park SS, Lee WK, Macromol. Symp., 249, 431 (2007)

[8] Clark DT, Peeling JO, Malley JM, J. Polym. Sci. A: Polym. Chem., 14, 543 (1976)

[9] Ho T, Wynne KJ, Macromolecules, 25, 3521 (1992)

[10] Akesso L, Navabpour P, Teer D, Pettitt ME, Callow ME, Liu C, Su XJ, Wang S, Zhao Q, Donik C, Kocijan A, Jenko M, Callow JA, Appl. Surf. Sci., 255(13-14), 6508 (2009)

[11] Chen X, Gardella JA, Kumler PL, Macromolecules, 26, 4601 (1993)

[12] Novak I, Sysel P, Zemek J, Spirkova M, Velic D, Aranyosiova M, Florian S, Pollak V, Kleinova A, Lednicky F, Janigova I, Eur. Polym. J., 45, 57 (2009)

[13] Erbil HY, Yasar B, Suzer S, Baysal BM, Langmuir, 13(20), 5484 (1997)

[14] Lee WK, Compos. Interfaces, 13(2-3), 159 (2006)

[15] Kojima K, Gore CR, Marvel CS, J. Polym. Sci. A: Polym. Chem., 4, 2325 (1966)

[16] Chen J, Ph D. Dissertation, Surface Composition and Morphology Studies of Siloxane Multicomponent Polymers: Effects of Structure and Processing, State University of New York, Buffalo, 1998.

[17] Rahman MM, Chun HH, Park H, Macromol. Res., 19(1), 8 (2011)