Self-assembly of pODMA-b-ptBA-b-pODMA triblock copolymers in bulk and on surfaces. A quantitative SAXS/AFM comparison
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Authors
Wu, W.
Huang, J. Y.
Jia, S. J.
Kowalewski, T.
Matyjaszewski, K.
Pakula, T.
Gitsas, A.
Floudas, G.
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peer reviewed
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Langmuir
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The phase state of a series of poly(n-octadecyl methacrylate)-b-poly(tert-butyl acrylate)-b-poly(n-octadecyl methacrylate) (pODMA-b-ptBA-b-pODMA) triblock copolymers, synthesized through atom transfer radical polymerization, has been investigated in bulk and on surfaces using small-angle X-ray scattering and atomic force microscopy, respectively. The mean-field theory was employed to construct the bulk phase diagram. Excellent agreement was found between the bulk and surface morphologies as well as for the domain spacing (domain spacing scaled as d approximate to N-0.64), suggesting that the strong polymer-polymer interactions in bulk are also the dominant interactions on surfaces.
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transfer radical polymerization, atomic-force microscopy, block-copolymers, microphase separation, thin-films, star copolymers, simple graft, equilibrium, polymers, transitions
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<Go to ISI>://000232453300052
http://pubs.acs.org/doi/pdfplus/10.1021/la051130u
http://pubs.acs.org/doi/pdfplus/10.1021/la051130u
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en
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Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών