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Hyperbranched polyesters as biodegradable and antibacterial additives

Title data

Bakhshi, Hadi ; Agarwal, Seema:
Hyperbranched polyesters as biodegradable and antibacterial additives.
In: Journal of Materials Chemistry B. Vol. 5 (2017) Issue 33 . - pp. 6827-6834.
ISSN 2050-7518
DOI: https://doi.org/10.1039/C7TB01301A

Abstract in another language

Herein, we present novel hyperbranched poly(amino-ester)s functionalized with quaternary ammonium salts (QAS-HPAEs). These materials can be used as antibacterial and biodegradable additives for mixing with non-active polymers. The chemical structure and thermal properties of the HPAEs were studied. All QAS-HPAEs were stable until 192 °C, which makes their thermal blending with other polymers possible. Blending polycaprolactone (PCL) as a biodegradable polymer with QAS-HPAEs improved its surface and bulk hydrophilicity, while partially decreasing its elastic modulus and tensile strength. Mixing 10 wt% of QAS-HPAEs in PCL resulted in a film with high contact-killing activity against E. coli and B. subtilis and faster degradability in the presence and absence of esterase. The activity of esterase was inhibited in the presence of a higher content of QAS-HPAEs (20 wt%).

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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
Faculties
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 10 Aug 2018 13:18
Last Modified: 10 Aug 2018 13:18
URI: https://eref.uni-bayreuth.de/id/eprint/45400