Solvent‐Free Aqueous Dispersions of Block Copolyesters for Electrospinning of Biodegradable Nonwoven Mats for Biomedical Applications. Issue 12 (4th August 2014)

• Record Type: Journal Article
• Authors: Bubel, Kathrin; Grunenberg, Daniel; Vasilyev, Gleb; Zussman, Eyal; Agarwal, Seema; Greiner, Andreas
• Is Part Of: Macromolecular materials and engineering. Volume 299:Issue 12(2014:Dec.)
• Page Start: 1445
• Page End: 1454
• Publication Date: 2014-08-04
• Subjects: Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/mame.201400116
• Languages: English
• ISSNs: 1438-7492

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <sec id="mame201400116-sec-0001" sec-type="section"> <p>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(ϵ‐caprolactone‐<italic>b</italic>‐methoxypolyethylene glycol)) (PCL‐<italic>b</italic>‐MPEG)) are emulsified in water at 90 °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‐<italic>b</italic>‐MPEG/PEO dispersions is adduced using rheological studies. PCL block length dependent water stable nanofiber non‐wovens are obtained upon electrospinning of the dispersions.<inline-graphic xlink:href="ark:/27927/pgh2hn0q2b7" content-type="mame201400116-gra-0001" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </sec> </abstract>