Nanofibrous nonwovens based on dendritic‐linear‐dendritic poly(ethylene glycol) hybrids |
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Authors: | Stefanos Kikionis Efstathia Ioannou Oliver C J Andrén Ioannis S Chronakis Amir Fahmi Michael Malkoch Georgios Toskas Vassilios Roussis |
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Affiliation: | 1. Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece;2. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56‐58, SE‐100 44 Stockholm, Sweden;3. Nano‐Bio Science Research Group, DTU‐Food, Technical University of Denmark, Kemitorvet 202, 2800 Kgs. Lyngby, Denmark;4. Faculty of Technology and Bionics, Rhein‐Waal University of Applied Sciences, Marie‐Curie‐Stra?e 1, Kleve, D‐47533, Germany;5. Department of Textile Engineering, Technological Educational Institute of Piraeus, 250 Thivon and Petrou Ralli Ave, Egaleo, 12244, Greece |
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Abstract: | Dendritic‐linear‐dendritic (DLD) hybrids are highly functional materials combining the properties of linear and dendritic polymers. Attempts to electrospin DLD polymers composed of hyperbranched dendritic blocks of 2,2‐bis(hydroxymethyl) propionic acid on a linear poly(ethylene glycol) core proved unsuccessful. Nevertheless, when these DLD hybrids were blended with an array of different biodegradable polymers as entanglement enhancers, nanofibrous nonwovens were successfully prepared by electrospinning. The pseudogeneration degree of the DLDs, the nature of the co‐electrospun polymer and the solvent systems used for the preparation of the electrospinning solutions exerted a significant effect on the diameter and morphology of the electrospun fibers. It is worth‐noting that aqueous solutions of the DLD polymers and only 1% (w/v) poly(ethylene oxide) resulted in the production of smoother and thinner nanofibers. Such dendritic nanofibrous scaffolds can be promising materials for biomedical applications due to their biocompatibility, biodegradability, multifunctionality, and advanced structural architecture. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 45949. |
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Keywords: | biodegradable dendrimers electrospinning fibers hyperbranched polymers and macrocycles |
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