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Synthesis of New Thermoplastic Elastomers by Silver Nanoparticles as Cross-Linker

Title data

Bokern, Stefan ; Fan, Ziyin ; Mattheis, Claudia ; Greiner, Andreas ; Agarwal, Seema:
Synthesis of New Thermoplastic Elastomers by Silver Nanoparticles as Cross-Linker.
In: Macromolecules. Vol. 44 (28 June 2011) Issue 12 . - pp. 5036-5042.
ISSN 0024-9297
DOI: https://doi.org/10.1021/ma200738b

Official URL: Volltext

Abstract in another language

A novel type of elastomers with silver nanoparticles (AgNP) as cross-linkers has been obtained by a quantitative one-phase bottom-up procedure based on alpha,omega-dimercapto-poly(cis-1,4-isoprene) (PIP). This telechelic polymer with high cis-content of >80% and near-quantitative fiinctionalization degree has been synthesized in a one-pot procedure by anionic polymerization. It was cross-linked by coordination of the thiol groups to in-situ synthesized AgNP to yield a repeatedly melt-processable elastomer. It was found that the E-modulus increased up to an ideal ratio of AgNP to PIP and decreases drastically with AgNP oversaturation due to decreasing cross-linking density. Swelling experiments were in agreement with these results. The cross-linking of telechelic polymers with metal nanoparticles has been applied to other metals and polymers, leading to cross-linked materials in all cases. Antibacterial properties of the silver-containing elastomers were found by the Kirby-Bauer test.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: GOLD NANOPARTICLES; POLYMERIZATION; LINKING; BLENDS; COPPER
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: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 01 Apr 2015 06:27
Last Modified: 01 Apr 2015 06:27
URI: https://eref.uni-bayreuth.de/id/eprint/9540