Abstract
Light scattering and small-angle neutron scattering experiments were performed on comicelles of several combinations of oppositely charged (block co)polymers in aqueous solutions. Fundamental differences between the internal structure of this novel type of micelle --termed complex coacervate core micelle (C3Ms), polyion complex (PIC) micelle, block ionomer complex (BIC), or interpolyelectrolyte complex (IPEC)-- and its traditional counterpart, i.e., a micelle formed via self-assembly of polymeric amphiphiles, give rise to differences in scaling behaviour. Indeed, the observed dependencies of micellar size and aggregation number on corona block length, N corona , are inconsistent with scaling predictions developed for polymeric micelles in the star-like and crew-cut regime. Generic C3M characteristics, such as the relatively high core solvent fraction, the low core-corona interfacial tension, and the high solubility of the coronal chains, are causing the deviations. A recently proposed scaling theory for the cross-over regime, as well as a primitive first-order self-consistent field (SCF) theory for obligatory co-assembly, follow our data more closely.
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References
H.G. Bungenberg de Jong, H.R. Kruyt, Proc. Koninkl. Akad. Wetensch. 32, 849 (1929).
A.V. Kabanov et al., Macromolecules 29, 6797 (1996).
A. Harada, K. Kataoka, Macromolecules 28, 5294 (1995).
M.A. Cohen Stuart, N.A.M. Besseling, R.G. Fokkink, Langmuir 14, 6846 (1998).
J.F. Gohy, S.K. Varshney, R. Jerome, Macromolecules 34, 3361 (2001).
I.K. Voets et al., Macromolecules 40, 8476 (2007).
S. van der Burgh, A. de Keizer, M.A. Cohen Stuart, Langmuir 20, 1073 (2004).
P.E. Millard et al., in preparation (2009).
P. Salomaa, L.L. Schaleger, F.A. Long, J. Am. Chem. Soc. 86, 1 (1964).
B. Hofs et al., Phys. Chem. Chem. Phys. 8, 4242 (2006).
I.K. Voets et al., Angew. Chem. Int. Ed. 45, 6673 (2006).
I.K. Voets et al., Soft Matter 5, 999 (2009).
I.K. Voets et al., Langmuir 24, 12221 (2008).
I.K. Voets, A. de Keizer, M.A. Cohen Stuart, Adv. Colloid Interface Sci. 147–148, 300 (2009).
E.Y. Kramarenko, A.R. Khokhlov, P. Reineker, J. Chem. Phys. 125, 194902 (2006).
A. Halperin, Macromolecules 20, 2943 (1987).
J. Noolandi, K.M. Hong, Macromolecules 16, 1443 (1983).
R. Nagarajan, K. Ganesh, J. Chem. Phys. 90, 5843 (1989).
N. Dan, M. Tirrell, Macromolecules 26, 4310 (1993).
E.B. Zhulina et al., Macromolecules 38, 5330 (2005).
I.K. Voets, F.A.M. Leermakers, Phys. Rev. E 78, 061801 (2008).
I. Larue et al., Macromolecules 41, 6555 (2008).
P. Molyneux, Water-Soluble Synthetic Polymers: Properties and Behavior (CRC Press, 1982).
J. Brandrup, E.H. Immergut (Editors), Polymer Handbook, 3rd edition (John Wiley & Sons, 1989).
N.G. Hoogeveen, M.A. Cohen Stuart, G.J. Fleer, J. Colloid Interface Sci. 182, 133 (1996).
A.S. Lee et al., Macromolecules 32, 4302 (1999).
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Voets, I.K., de Vries, R., Fokkink, R. et al. Towards a structural characterization of charge-driven polymer micelles. Eur. Phys. J. E 30, 351 (2009). https://doi.org/10.1140/epje/i2009-10533-4
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DOI: https://doi.org/10.1140/epje/i2009-10533-4