Ionic liqids for the control of the morphology in poly(vinylidene fluoride-co-hexafluoropropylene) membranes
| Autor: | Simone Eizagirre Barker, Roberto Fernández de Luis, Paula GSaiz, María I. Arriortua, Ana Catarina Lopes |
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| Přispěvatelé: | European Commission, Ministerio de Economía, Industria y Competitividad, Gobierno Vasco |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Thermoplastic
Materials science Biocompatibility Synthetic membrane 02 engineering and technology modelling morphology mechanical properties 010402 general chemistry 01 natural sciences ionic liquids chemistry.chemical_compound hydrophilic properties Copolymer lcsh:TA401-492 General Materials Science poly(vinylidene fluoride-co-hexafluoropropylene) chemistry.chemical_classification Mechanical Engineering Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Membrane chemistry Chemical engineering Mechanics of Materials membranes Ionic liquid lcsh:Materials of engineering and construction. Mechanics of materials Hexafluoropropylene 0210 nano-technology |
| Zdroj: | Materials & Design, Vol 155, Iss, Pp 325-333 (2018) Addi. Archivo Digital para la Docencia y la Investigación instname |
| Popis: | The development of polymer membranes with tailored micro-morphology and wettability is a demand in the areas of filtration, sensors, and tissue engineering, among others. The thermoplastic copolymer poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), is one of the most widely used polymers for these applications due to its good mechanical and thermal properties, biocompatibility and low density. Although the control of the PVDF-HFP morphology is a complicated task, the introduction of ionic liquids (ILs) in the PVDF-HFP matrix opens news perspectives in this area. This work consists on a systematic study of three different protic ionic liquids ([dema][TfO], [MIm][NTf2] and [MIm][Cl]) in the control of PVDF-HFP membranes properties. Different preparation conditions are also analysed. These results demonstrate how several parameters such as morphology, water absorption capacity and mechanical properties vary depending on the production methodology employed and on the choice of incorporated IL. Pores of different sizes, spherulites, and compact structures have been obtained, as well hydrophilic and highly hydrophobic structures. These results show that ILs play a key role in the optimization of polymer properties, and given the huge number of ILs available, they open up new possibilities for the development of polymer membranes suitable for applications where specific morphologies are desirable. Ministerio de Economía, Industria y Competitividad, MAT2016-76739R Gobierno Vasco, IT-630-13 European Union's Horizon 2020 Programme, MSCA-IF-2015, grant agreement 701852 |
| Databáze: | OpenAIRE |
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