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Functionalisable Epoxy-rich Electrospun Fibres Based on Renewable Terpene for Multi-Purpose Applications

机译:基于可再生萜烯的富含功能性环氧的电纺纤维用于多功能应用

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摘要

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 ω-transaminase enzyme immobilisation for heterogeneous catalysis.
机译:能够以优于化石的替代品或具有新性质和功能的新的生物基聚合物在循环经济框架中具有相关的兴趣。在这项工作中,使用一种新的生物基多碳酮丙烯酸酯二环氧化物(PCADE)作为一步的静电纺丝过程中的添加剂,以赋予其表面上具有官能化环氧基的纤维。为了证明该方法的可行性,制备具有不同量的PCADE的聚(偏二氟乙烯)(PVDF)纤维。 TGA,DSC,DMTA和XPS的彻底表征显示,两种聚合物不混溶,并且PCADE优先在纤维表面处偏离,从而显影为准备用途表面官能化纤维的制备非常简单的一步方法。我们通过在两个非常不同的应用中利用PVDF纤维表面的环氧基团来证明这一点,即在环氧基碳纤维增强复合材料和用于异质催化的ω-转氨酶酶固定的膜中。

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