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The influence of selective solvents on the transition behavior of poly(styrene-b-monomethoxydiethylenglycol-acrylate-b-styrene) thick films

Zhong, Q. ; Adelsberger, J. ; Niedermeier, M. A. ; Golosova, A. ; Bivigou-Koumba, A. M. ; Laschewsky, A. ; Funari, S. S. ; Papadakis, C. M. ; Müller-Buschbaum, P.

Colloid and polymer science, 2013-06, Vol.291 (6), p.1439-1451 [Periódico revisado por pares]

Berlin/Heidelberg: Springer-Verlag

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Título:
The influence of selective solvents on the transition behavior of poly(styrene-b-monomethoxydiethylenglycol-acrylate-b-styrene) thick films
Autor: Zhong, Q. ; Adelsberger, J. ; Niedermeier, M. A. ; Golosova, A. ; Bivigou-Koumba, A. M. ; Laschewsky, A. ; Funari, S. S. ; Papadakis, C. M. ; Müller-Buschbaum, P.
Assuntos: Applied sciences ; Blocking ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Complex Fluids and Microfluidics ; Exact sciences and technology ; Film thickness ; Food Science ; Liquids ; Micelles ; Nanotechnology and Microengineering ; Organic polymers ; Original Contribution ; Physical Chemistry ; Physicochemistry of polymers ; Polymer Sciences ; Polystyrene resins ; Properties and characterization ; Shells ; Soft and Granular Matter ; Solvents ; Structure, morphology and analysis ; Transition temperature
É parte de: Colloid and polymer science, 2013-06, Vol.291 (6), p.1439-1451
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Thick poly(styrene- b -monomethoxydiethylenglycol-acrylate- b -styrene) [P(S- b -MDEGA- b -S)] films (thickness 5 μm) are prepared from different solvents on flexible substrates by solution casting and investigated with small-angle X-ray scattering. As the solvents are either PS- or PMDEGA-selective, micelles with different core-shell micellar structures are formed. In PMDEGA-selective solvents, the PS block is the core and PMDEGA is the shell, whereas in PS-selective solvents, the order is reversed. After exposing the films to liquid D 2 O, the micellar structure inside the films prepared from PMDEGA-selective solvents remains unchanged and only the PMDEGA (shell part) swells. On the contrary, in the films prepared from PS-selective solvents, the micelles revert the core and the shell. This reversal causes more entanglements of the PMDEGA chains between the micelles. Moreover, the thermal collapse transition of the PMDEGA block in liquid D 2 O is significantly broadened. Irrespective of the solvent used for film preparation, the swollen PMDEGA shell does not show a prominent shrinkage when passing the phase transition, and the transition process occurs via compaction. The collapsed micelles have a tendency to densely pack above the transition temperature.
Editor: Berlin/Heidelberg: Springer-Verlag
Idioma: Inglês

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The influence of selective solvents on the transition behavior of poly(styrene-b-monomethoxydiethylenglycol-acrylate-b-styrene) thick films

Zhong, Q. ; Adelsberger, J. ; Niedermeier, M. A. ; Golosova, A. ; Bivigou-Koumba, A. M. ; Laschewsky, A. ; Funari, S. S. ; Papadakis, C. M. ; Müller-Buschbaum, P.

Berlin/Heidelberg: Springer-Verlag

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