Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Synthesis of Zn-based 1D and 2D coordination polymer nanoparticles in block copolymer micelles

Title data

Göbel, Christoph ; Hörner, Gerald ; Greiner, Andreas ; Schmalz, Holger ; Weber, Birgit:
Synthesis of Zn-based 1D and 2D coordination polymer nanoparticles in block copolymer micelles.
In: Nanoscale Advances. Vol. 2 (2020) .
ISSN 2516-0230
DOI: https://doi.org/10.1039/D0NA00334D

Abstract in another language

Nanoparticles of the 1D and 2D coordination polymers [Zn(OAc)2(bipy)]n and [Zn(TFA)2(bppa)2]n were prepared, employing polystyrene-block-poly(4-vinylpyridine) diblock copolymers with different weight fractions of the 4-vinylpyridine (4VP) block and comparable overall molecular weights of Mn ≈ 155 kg mol-1 as template (SV-15 and SV-42 with 15 and 42 wt% 4VP, respectively). [Zn(OAc)2(bipy)]n nanoparticles were successfully synthesized within the 4VP core of SV-42 micelles, showing a core size of Dcore = 47 ± 5 nm and a hydrodynamic diameter of Dh = 157 ± 46 nm, determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS). The crystallinity of the composite is quite low, showing only low intensity reflexes in the powder X-ray diffraction (PXRD) pattern with the highest particle load. No indications for larger microcrystals were detected by scanning electron microscopy (SEM), proving the successful integration of the coordination polymer nanoparticles within the micellar cores. Nanocomposites of the 2D coordination network [Zn(TFA)2(bppa)2]n were synthesized using both diblock copolymers. The particle core sizes (from TEM) and hydrodynamic diameters (from DLS) correlate with the 4VP fraction of the micelles, resulting in Dcore = 46 ± 6 nm for SV-42 and 15 ± 2 nm for SV-15 and Dh = 340 ± 153 nm and 177 ± 57 nm, respectively. The successful synthesis was proven by PXRD and SEM images, confirming the absence of larger crystallites. Hence, it is possible to synthesize nanocomposites of Zn-based 1D and 2D coordination polymers by a direct approach utilizing diblock copolymer micelles as template.

Further data

Item Type: Article in a journal
Refereed: Yes
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
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry IV
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry IV > Chair Inorganic Chemistry IV - Univ.-Prof. Dr. Birgit Weber
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 09 Sep 2020 07:28
Last Modified: 09 Sep 2020 07:28
URI: https://eref.uni-bayreuth.de/id/eprint/56851