期刊
POLYMERS
卷 13, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/polym13111804
关键词
bio-based polymer; electrospinning; surface functionalisation; epoxy group; carbon fibre reinforced composites; enzyme immobilisation
资金
- Italian Ministry of University and Research (MUR)
A novel bio-based polymer was developed and incorporated into poly(vinylidene fluoride) fibers through a simple electrospinning process, resulting in functionalizable epoxy groups at the fiber surface. This new method has the potential for widespread application in the functionalization of fiber materials, demonstrated in applications such as carbon fiber reinforced composites and enzyme immobilization membranes.
New bio-based polymers capable of either outperforming fossil-based alternatives or possessing new properties and functionalities are of relevant interest in the framework of the circular economy. In this work, a novel bio-based polycarvone acrylate di-epoxide (PCADE) was used as an additive in a one-step straightforward electrospinning process to endow the fibres with functionalisable epoxy groups at their surface. To demonstrate the feasibility of the approach, poly(vinylidene fluoride) (PVDF) fibres loaded with different amounts of PCADE were prepared. A thorough characterisation by TGA, DSC, DMTA and XPS showed that the two polymers are immiscible and that PCADE preferentially segregates at the fibre surface, thus developing a very simple one-step approach to the preparation of ready-to-use surface functionalisable fibres. We demonstrated this by exploiting the epoxy groups at the PVDF fibre surface in two very different applications, namely in epoxy-based carbon fibre reinforced composites and membranes for omega-transaminase enzyme immobilisation for heterogeneous catalysis.
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