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Solvent-Free Aqueous Dispersions of Block Copolyesters for Electrospinning of Biodegradable Nonwoven Mats for Biomedical Applications

Title data

Bubel, Kathrin ; Grunenberg, Daniel ; Vasilyev, Gleb ; Zussman, Eyal ; Agarwal, Seema ; Greiner, Andreas:
Solvent-Free Aqueous Dispersions of Block Copolyesters for Electrospinning of Biodegradable Nonwoven Mats for Biomedical Applications.
In: Macromolecular Materials and Engineering. Vol. 299 (December 2014) Issue 12 . - pp. 1445-1454.
ISSN 1438-7492
DOI: https://doi.org/10.1002/mame.201400116

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Biodegradable block copolyesters are processed from water to water-stable electrospun fibers without use of any organic solvent, which is of major importance for a variety of applications. The copolyesters (poly(epsilon-caprolactone-b-methoxypolyethylene glycol)) (PCL-b-MPEG)) are emulsified in water at 90 degrees C in presence of poly(ethylene oxide) (PEO) using melt dispersion method. Dramatic increase in viscosity is observed upon addition of PEO to aqueous dispersions of copolyesters. Evidence of structure formation in aqueous PCL-b-MPEG/PEO dispersions is adduced using rheological studies. PCL block length dependent water stable nanofiber non-wovens are obtained upon electrospinning of the dispersions.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: aqueous dispersions; biodegradable block copolyesters; electrospinning
Subject classification: Materials Science; Polymer Science
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
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
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 24 Feb 2015 09:21
Last Modified: 31 Mar 2015 06:57
URI: https://eref.uni-bayreuth.de/id/eprint/7419