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231223s2007 xx ||||| 00| ||eng c |
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|a (NLM)17760470
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Perlich, J
|e verfasserin
|4 aut
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|a Modification of the morphology of P(S-b-EO) templated thin TiO2 films by swelling with PS homopolymer
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|b nc
|2 rdacarrier
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|a Date Completed 13.11.2007
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|a Date Revised 18.09.2007
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a For the controlled modification of sol-gel-templated polymer nanocomposites, which are transferred to a nanostructured, crystalline TiO2 phase by a calcination process, the addition of a single homopolymer was investigated. For the preparation, the homopolymer polystyrene (PS) is added in different amounts to the diblock copolymer P(S-b-EO) acting as a templating agent. The homopolymer/diblock copolymer blend system is combined with sol-gel chemistry to provide and attach the TiO2 nanoparticles to the diblock copolymer. So-called good-poor solvent-pair-induced phase separation leads to the formation of nanostructures by film preparation via spin coating. The fabricated morphologies are studied as a function of added homopolymer before and after calcination with atomic force microscopy, field emission scanning electron microscopy, and grazing incidence small-angle X-ray scattering. The observed behavior is discussed in the framework of controlling the block copolymer morphologies by the addition of homopolymers. At small homopolymer concentrations, the increase in homopolymer concentration changes the structure size, whereas at high homopolymer concentrations, a change in morphology is triggered. Thus, the behavior of a pure polymer system is transferred to a more complex hybrid system
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|a Journal Article
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1 |
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|a Schulz, L
|e verfasserin
|4 aut
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1 |
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|a Abul Kashem, M M
|e verfasserin
|4 aut
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| 700 |
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|a Cheng, Y-J
|e verfasserin
|4 aut
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|a Memesa, M
|e verfasserin
|4 aut
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| 700 |
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|a Gutmann, J S
|e verfasserin
|4 aut
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|a Roth, S V
|e verfasserin
|4 aut
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|a Müller-Buschbaum, P
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 23(2007), 20 vom: 25. Sept., Seite 10299-306
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:23
|g year:2007
|g number:20
|g day:25
|g month:09
|g pages:10299-306
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