Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-1547
Title: Tailoring pore structure of ultralight electrospun sponges by solid templating
Authors : Deuber, Fabian
Mousavi, Sara
Hofer, Marco
Adlhart, Christian
Published in : ChemistrySelect
Volume(Issue) : 1
Issue : 18
Pages : 5595
Pages to: 5598
Publisher / Ed. Institution : Wiley
Publisher / Ed. Institution: Hoboken, New Jersey
Issue Date: 13-Oct-2016
Language : Englisch / English
Subjects : Electrospinning; Aerogel; Nanostructures; Freeze-casting
Subject (DDC) : 660: Technische Chemie
Abstract: Freeze-casted nanofiber based sponges or aerogels exhibit a hierarchical porous structure. Pore formation is only partially understood. Therefore, we studied the underlying solid templating mechanism. We were able to tailor the secondary pore size between 9.5 and 123 µm while retaining the smaller primary pores known from electrospun nanofiber membranes. To understand the effect of microstructure on the sponges’ bulk properties, mass flow through the pores and interaction with the sponges’ internal surface were investigated. By solely altering the sponges’ microstructure we indeed found tunability in permeability by a factor 7 and in filtration efficiency by a factor of 220. Hence, pore architecture of nanofiber based sponges is a key element for their performance. The selected pullulan/PVA polymer blends and aqueous electrospinning conditions are benign and allow the facile adaptation of these ultralight highly porous sponges for a large number of applications.
Departement: Life Sciences und Facility Management
Organisational Unit: Institut für Chemie und Biotechnologie (ICBT)
Publication type: Beitrag in wissenschaftlicher Zeitschrift / Article in scientific Journal
DOI : 10.1002/slct.201601084
10.21256/zhaw-1547
ISSN: 2365-6549
URI: https://digitalcollection.zhaw.ch/handle/11475/2062
Appears in Collections:Publikationen Life Sciences und Facility Management

Files in This Item:
File Description SizeFormat 
2016_Adlhart_Tailoring_pore_structure_ChemistrySelect.pdf410.18 kBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.