Fabrication and Characterisation of Microgel/Polymer Composite Microfibres
Autor: | Dominic Kehren, Andrij Pich |
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Rok vydání: | 2013 |
Předmět: |
Vinyl alcohol
Materials science Aqueous solution Polymers and Plastics General Chemical Engineering Organic Chemistry Composite number Sorption Isothermal process Electrospinning chemistry.chemical_compound Differential scanning calorimetry chemistry Materials Chemistry medicine Composite material Swelling medicine.symptom |
Zdroj: | Macromolecular Materials and Engineering. 298:1282-1293 |
ISSN: | 1438-7492 |
Popis: | In this work microgel-PVA composite fibres are prepared by means of an electrospinning process using aqueous solutions of poly(vinyl alcohol) (PVA) and poly(N-vinylcaprolactam)-based microgels. The optimal parameters are defined to fabricate homogenous composite fibres in which the microgels are embedded into a PVA matrix. It is demonstrated that the fibres can be physically and chemically crosslinked. The fibre morphology is visualised and its properties investigated by differential scanning calorimetry, DSC, thermo-gravimetric analysis, TGA, and isothermal moisture sorption analysis. The results show that the thermo-sensitive properties of the microgels are retained inside the fibres and that the degree of swelling and the moisture sorption kinetics can be tuned by changing the temperature. |
Databáze: | OpenAIRE |
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