Hexagonal to Cubic Phase Transition in the D2O-Induced Reverse Micellar Solution of a PEO-b-PPO-b-PEO Block Copolymer

Do Hyun Kim; Yoon Soo Ko; Yong Ku Kwon

Macromolecular Research, Vol.16, No.1, 62-65, January, 2008

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Hexagonal to Cubic Phase Transition in the D2O-Induced Reverse Micellar Solution of a PEO-b-PPO-b-PEO Block Copolymer

Do Hyun Kim, Yoon Soo Ko, and Yong Ku Kwon^†

Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea

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The morphology of the D2O-induced reverse micellar structure of an amphiphilic block copolymer of poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide)(EO76PO29EO76) was investigated in hydrophobic media by small angle neutron scattering (SANS). Increasing D2O in the styrene/divinylbenzene solution of EO76PO29EO76 led to a change in morphology of the reverse micelles from a short range ordered molecular aggregate to a hexagonally arranged micelle, and further to a spherical micelle.

Keywords:reverse micelles;amphiphilic block copolymer;small angle neutron scattering

[References]

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Kosslick H, Lischke G, Walther G, Storek W, Martin A, Fricke R, Microporous Mater., 9, 13 (1997)
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Krause B, Sijbesma HJP, Munuklu P, van der Vegt NFA, Wessling M, Macromolecules, 34(25), 8792 (2001)
Krause B, Diekmann K, van der Vegt NFA, Wessling M, Macromolecules, 35(5), 1738 (2002)
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Wulff G, Chem. Rev., 102(1), 1 (2002)
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Mortensen K, Colloids Surf. A: Physicochem. Eng. Asp., 183-185, 277 (2001)
Kwon KW, Park MJ, Hwang J, Char KH, Polym. J., 33, 404 (2001)
Lipic PM, Bates FS, Hillmyer MA, J. Am. Chem. Soc., 120(35), 8963 (1998)
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Kresge CT, Leonowicz ME, Roth WJ, Vartuli JC, Beck JS, Nature, 359, 710 (1992)
Beck JS, Vartuli JC, Roth WJ, Leonowicz ME, J. Am. Chem. Soc., 114, 10834 (1992)
Lettow JS, Han YJ, Schmidt-Winkel P, Yang PD, Zhao DY, Stucky GD, Ying JY, Langmuir, 16(22), 8291 (2000)
Guo C, Liu HZ, Chen JY, Colloids Surf. A: Physicochem. Eng. Asp., 175, 193 (2000)

[Referenced By]

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[1] Corma A, Navarro MT, Perez-Pariente J, Chem. Commun., 147 (1994)

[2] Kosslick H, Lischke G, Walther G, Storek W, Martin A, Fricke R, Microporous Mater., 9, 13 (1997)

[3] Le ON, Thomson RT, U.S. Patent 5 232 580 (1993)

[4] Sellergren B, Lepisto M, Mosbach K, J. Am. Chem. Soc., 110, 5853 (1988)

[5] Arnold FH, Dhah P, Shnec D, Plunkett S, U.S. Patent 91-649470 (1992)

[6] Dabulis K, Klibanov AM, Biotechnol. Bioeng., 39, 176 (1992)

[7] Viatakis G, Andersson LI, Mueller R, Mosbach K, Nature, 361, 645 (1993)

[8] Damen J, Neckers DC, J. Am. Chem. Soc., 102, 3265 (1980)

[9] Krause B, Sijbesma HJP, Munuklu P, van der Vegt NFA, Wessling M, Macromolecules, 34(25), 8792 (2001)

[10] Krause B, Diekmann K, van der Vegt NFA, Wessling M, Macromolecules, 35(5), 1738 (2002)

[11] Martin CR, Chem. Mater., 8, 1739 (1996)

[12] Wulff G, Chem. Rev., 102(1), 1 (2002)

[13] Dai LR, Wang TW, Bu LT, Chen G, Colloids Surf. A: Physicochem. Eng. Asp., 181, 151 (2001)

[14] Mortensen K, Colloids Surf. A: Physicochem. Eng. Asp., 183-185, 277 (2001)

[15] Kwon KW, Park MJ, Hwang J, Char KH, Polym. J., 33, 404 (2001)

[16] Lipic PM, Bates FS, Hillmyer MA, J. Am. Chem. Soc., 120(35), 8963 (1998)

[17] Zhao DY, Feng JL, Huo QS, Melosh N, Fredrickson GH, Chmelka BF, Stucky GD, Science, 279(5350), 548 (1998)

[18] Kresge CT, Leonowicz ME, Roth WJ, Vartuli JC, Beck JS, Nature, 359, 710 (1992)

[19] Beck JS, Vartuli JC, Roth WJ, Leonowicz ME, J. Am. Chem. Soc., 114, 10834 (1992)

[20] Lettow JS, Han YJ, Schmidt-Winkel P, Yang PD, Zhao DY, Stucky GD, Ying JY, Langmuir, 16(22), 8291 (2000)

[21] Guo C, Liu HZ, Chen JY, Colloids Surf. A: Physicochem. Eng. Asp., 175, 193 (2000)