Title data
Pletsch, Holger ; Greiner, Andreas ; Agarwal, Seema:
Preparing a pseudo-solid by the reinforcement of a polydentate thioether using silver nanoparticles.
In: Nanoscale.
Vol. 7
(2015)
Issue 5
.
- pp. 1977-1983.
ISSN 2040-3372
DOI: https://doi.org/10.1039/C4NR06834C
Project information
Project financing: |
Deutsche Forschungsgemeinschaft |
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Abstract in another language
The design of networks from polymers and noble metal nanoparticles requires thorough control over topological polymer-particle arrangements. This study explores the interaction between a linear polydentate poly(propylene sulfide) (PPrS) ligand and silver nanoparticles (AgNPs) with an aim to study its effect on mechanical and viscoelastic properties. Very low amounts (0.30 vol%) of silver nanoparticles lead to significant mechanical reinforcement of PPrS, yielding viscoelastic properties of an unfastened network with solid-like elastic responses on mechanical stimulation. The materials are made by ring-opening anionic polymerization of propylene sulfide to yield high molar mass PPrS with a total of 593 thioether functionalities per chain, followed by a simple in situ "grafting to" method to homogeneously incorporate AgNPs into the polymer matrix. From investigations on the chain dynamics using dynamic rheology it is concluded that well-dispersed AgNPs impose additional topological constraints on the polymer chains. Calculations of the statistical interparticle distances support a tele-bridging polymer-particle arrangement.
Further data
Item Type: | Article in a journal |
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Refereed: | Yes |
Keywords: | GOLD NANOPARTICLES; POLYMER NANOCOMPOSITES; SILICA; AGGREGATION; ELASTOMERS; DYNAMICS; RHEOLOGY; BEHAVIOR; SURFACE; DESIGN |
Institutions of the University: | 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 Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II |
Result of work at the UBT: | Yes |
DDC Subjects: | 500 Science > 500 Natural sciences 500 Science > 540 Chemistry |
Date Deposited: | 10 Mar 2015 11:48 |
Last Modified: | 10 Mar 2015 11:48 |
URI: | https://eref.uni-bayreuth.de/id/eprint/7995 |