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Tomlinson, M.R.; Cousin, F.; Geoghegan, M. (2009)
Publisher: Elsevier
Languages: English
Types: Article
Subjects:
We introduce a copolymer with a comb topology that has been engineered to assemble in a brush configuration at an air-water interface. The molecule comprises a 6.1 kDa poly(methyl methacrylate) backbone with a statistical amount of poly[2-(dimethyl amino)ethyl methacrylate] polybase side chains averaging 2.43 per backbone.. Brush layers deposited with the hydrophobic PMMA backbone adsorbed to hydrophobized silicon are stable in water even when stored at pH values less than 2.0 for over 24 h. The use of a Langmuir trough allows a simple controlled deposition of the layers at a variety of grafting densities. Depth profiling of brush layers was performed using neutron reflectometry and reveals a significant shifting of the responsiveness of the layer upon changing the grafting density. The degree of swelling of the layers at a pH value of 4 (below the pK(b)) decreases as grafting density increases. Lowering the pH of the subphase during deposition causes the side chains to become charged and more hydrophilic extending to a brush-like configuration while at neutral pH the side chains lie in a "pancake" conformation at the interface. (C) 2009 Elsevier Ltd. All rights reserved.
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    • Ed. 2007;46:6460-6463.
    • Zhou F, Shu W, Welland ME, and Huck WTS. J. Am. Chem. Soc. 2006;128:5326-5327.
    • Collett J, Crawford A, Hatton PV, Geoghegan M, and Rimmer S. J. R. Soc. Interface 2007;4:117-126.
    • Rühe J. Polymer brushes: On the way to tailor-made surfaces. In: Advincula R, Brittain WJ, Caster KC, and Rühe J, editors. Polymer brushes: synthesis, characterization, applications. Weinheim: Wiley-VCH, 2004. pp. 1-31.
    • Zhao B and Brittain WJ. Prog. Polym. Sci. 2000;25:677-710.
    • Jones DM, Brown AA, and Huck WTS. Langmuir 2002;18:1265-1269.
    • Goodman D, Kizhakkedathu JN, and Brooks DE. Langmuir 2004;20:6238-6245.
    • Parnell AJ, Martin SJ, Dang CC, Geoghegan M, Jones RAL, Crook CJ, Howse JR, and Ryan AJ. Polymer 2009;50:1005-1014.
    • Yamamoto S, Tsujii Y, and Fukuda T. Macromolecules 2000;33:5995-5998.
    • Devaux C, Cousin F, Beyou E, and Chapel J-P. Macromolecules 2005;38:4296-4300.
    • Yamamoto S, Ejaz M, Tsujii Y, and Fukuda T. Macromolecules 2000;33:5608-5612.
    • Patten TE and Matyjaszewski K. Adv. Mater. 1998;10:901-915.
    • Bütün V, Armes SP, and Billingham NC. Polymer 2001;42:5993-6008.
    • Rubinstein M and Colby RH. Polymer Physics. Oxford: Oxford University Press, 2003.
    • Zimm BH and Stockmayer WH. J. Chem. Phys. 1949;17:1301-1314.
    • Whittington SG, Kosmas MK, and Gaunt DS. J. Phys. A: Math. Gen. 1988;21:4211-4216.
    • Gu L, Zhu S, and Hrymak AN. J. Polym. Sci. B: Polym. Phys. 1998;36:705-714.
    • Shiau L-D. Polymer 2002;43:2835-2843.
    • Zhu S, Li D, Yu Q, and Hunkeler D. J. Macromol. Sci. A: Pure Appl. Chem. 1998;35:33-56.
    • Fetters LJ, Hadjichristidis N, Lindner JS, and Mays JW. J. Phys. Chem. Ref. Data 1994;23:619-640.
    • Lapp A, Picot C, and Benoit H. Macromolecules 1985;18:2437-2441.
    • da Silva AMG, Filipe EJM, d'Oliveira JMR, and Martinho JMG. Langmuir 1996;12:6547-6553.
    • Kent MS, Lee LT, Factor BJ, Rondelez F, and Smith GS. J. Chem. Phys. 1995;103:2320-2342.
    • Baker SM, Leach KA, Devereaux CE, and Gragson DE. Macromolecules 2000;33:5432-5436.
    • Cheyne RB and Moffitt MG. Langmuir 2005;21:5453-5460.
    • Chung B, Choi M, Ree M, Jung JC, Zin WC, and Chang T. Macromolecules 2006;9:684-689.
    • Currie EPK, Sieval AB, Avena M, Zuilhof H, Sudhölter EJR, and Cohen Stuart MA. Langmuir 1999;15:7116-7118.
    • Francis R, Skolnik AM, Carino SR, Logan JL, Underhill RS, Angot S, Taton D, Gnanou Y, and Duran RS. Macromolecules 2002;35:6483-6485.
    • Hayashi S, Abe T, Higashi N, Niwa M, and Kurihara K. Langmuir 2002;18:3932-3944.
    • Kim Y, Pyun J, Fréchet JMJ, Hawker CJ, and Frank CW. Langmuir 2005;21:10444-10458.
    • Mouri E, Matsumoto K, Matsuoka H, and Torikai N. Langmuir 2005;21:1840-1847.
    • Seo Y, Paeng K, and Park S. Macromolecules 2001;34:8735-8744.
    • Shin K, Rafailovich MH, Sokolov J, Chang DM, Cox JK, Lennox RB, Eisenberg A, Gibaud A, Huang J, Hsu SL, and Satija SK. Langmuir 2001;17:4955-4961.
    • Geoghegan M, Ruiz-Pérez L, Dang CC, Parnell AJ, Martin SJ, Howse JR, Jones RAL, Golestanian R, Topham PD, Crook CJ, Ryan AJ, Sivia DS, Webster JRP, and Menelle A. Soft Matter 2006;2:1076-1080.
    • von Goeler F and Muthukumar M. Macromolecules 1995;28:6608-6617.
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