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Smart Organic-Inorganic Nanohybrids Based on Amphiphilic Block Copolymer Micelles and Functional Silsesquioxane Nanoparticles

Title data

Schumacher, Manuela ; Ruppel, Markus ; Yuan, Jiayin ; Schmalz, Holger ; Colombani, Olivier ; Drechsler, Markus ; Müller, Axel H. E.:
Smart Organic-Inorganic Nanohybrids Based on Amphiphilic Block Copolymer Micelles and Functional Silsesquioxane Nanoparticles.
In: Langmuir. Vol. 25 (17 March 2009) Issue 6 . - pp. 3407-3417.
ISSN 1520-5827
DOI: https://doi.org/10.1021/la803601a

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Smart organic-inorganic nanohybrids are formed in aqueous solution by the interaction of amphiphilic block copolymer micelles of poly(n-butyl acrylate)-block-poly(acrylic acid) (PnBA(x)T b-PAA(y) with x = 90, 100 and y = 100, 150, 300) and diglycidylaminopropyl-functional silsesquioxane nanoparticles. We investigate the structure of the complex nanohybrids in dependence on pH and salinity. The complexation preserves the original size of the micelles according to dynamic light scattering (DLS) measurements. Cryogenic transmission electron microscopy (cryo-TEM) and Fourier-transform infrared spectroscopy (FT-IR) measurements unveil the formation of organic-inorganic nanohybrids. Furthermore, cryo-TEM micrographs provide evidence for the formation of a core-shell-corona structure of the nanohybrid system. Dialysis experiments with fluorescently labeled silsesquioxane nanoparticles clearly demonstrate the interaction between the micellar system and the silsesquioxane nanoparticles.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: POLYION COMPLEX MICELLES; SOLUBLE INTERPOLYELECTROLYTE COMPLEXES; POLYHEDRAL OLIGOMERIC SILSESQUIOXANE; ACID) DIBLOCK COPOLYMERS; POLYELECTROLYTE COMPLEXES; SILICA NANOPARTICLES; POLY(ACRYLIC ACID); AQUEOUS-SOLUTION; QUATERNIZED POLY(4-VINYLPYRIDINE); ACRYLIC-ACID
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 15 Apr 2015 06:15
Last Modified: 15 Apr 2015 06:15
URI: https://eref.uni-bayreuth.de/id/eprint/10082