Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; College of Pardis, Chemistry Section, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
College of Pardis, Chemistry Section, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
Ultrason Sonochem. 2018 Mar;41:27-36. doi: 10.1016/j.ultsonch.2017.09.018. Epub 2017 Sep 11.
This study focused on the preparation and investigation of physicochemical features of new poly(vinyl chloride) (PVC) nanocomposites (NCs) including different amounts of carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) functionalized with riboflavin (RIB). Firstly, to increase the hydrophilicity of MWCNTs, the surface of them was functionalized by incorporating and formation of ester groups with RIB as a low cost and environmentally friendly biomolecule through ultrasound and microwave irradiations. Afterwards, PVC/RIB-MWCNTs NCs were fabricated via the solution casting and ultrasonic dispersion methods. Prepared NCs were examined by X-ray diffraction, thermogravimetric analysis, field emission scanning electron microscopy, transmission electron micrograph, and Raman spectroscopy. The PVC/RIB-MWCNTs NCs (12wt%) showed the higher mechanical and thermal behavior as compared to other concentration of MWCNTs.
本研究集中于新的聚氯乙烯（PVC）纳米复合材料（NCs）的制备和理化性质的研究，其中包括不同数量的经核黄素（RIB）功能化的羧基化多壁碳纳米管（MWCNTs-COOH）。首先，为了提高 MWCNTs 的亲水性，通过超声和微波辐射，将其表面与 RIB 进行结合和酯化反应，从而引入酯基，将其功能化，RIB 是一种低成本且环保的生物分子。然后，通过溶液浇铸和超声分散的方法制备了 PVC/RIB-MWCNTs NCs。通过 X 射线衍射、热重分析、场发射扫描电子显微镜、透射电子显微镜和拉曼光谱对制备的 NCs 进行了检查。与其他浓度的 MWCNTs 相比，PVC/RIB-MWCNTs NCs（12wt%）表现出更高的机械和热性能。
