Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones.

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ID: 70358
2019
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Ranked #326 of 812 articles by views in Materials (Basel, Switzerland)

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Abstract
This work reports the modification of Polyacrylonitrile (PAN) fibers by coupling to thiosemicarbazones to achieve the biological activity for the applications in the food product packaging. After modification, seven thiosemicarbazone compounds were synthesized. The as-synthesized thiosemicarbazone compounds were bonded to PAN fibers via covalent coupling, which was confirmed using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy. The mean graft efficiency of the compounds was about 1.92%, and the antibacterial efficiency was 88.6% and 45.1% against Staphylococcus aureus () bacteria. All the seven thiosemicarbazone compounds exerted excellent tyrosinase activity, low cytotoxicity, excellent metal ion chelation ability, and anti-bacterial behavior against both gram-positive and negative bacteria. The mechanical properties of the fibers have been maintained without significant damage after the chemical modification. The break strength test and elongation at the break test were done to measure the fracture strength of the modified fibers. Overall, the promising properties of the modified PAN fibers show potential applications in food packaging materials for fruits and vegetables, which require long-term anti-browning effects during their transportation and storage.
Reference Key
yao2019modificationmaterials Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yao, Yao;Liang, Yonghong;Navik, Rahul;Dong, Xiongwei;Cai, Yingjie;Zhang, Ping;
Journal Materials (Basel, Switzerland)
Year 2019
DOI
E3980
URL
Keywords
surface modification thiosemicarbazone tyrosinase inhibitor pan fiber covalent coupling

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