{"title":"Study of Structural, Thermal and Electrical Properties of Functionalized Multiwalled Carbon Nanotubes–Polyaniline Composites","authors":"Sundas Zafar, Tasneem Zahra Rizvi","doi":"10.1134/S1560090422700233","DOIUrl":null,"url":null,"abstract":"<div><div><h3>\n <b>Abstract</b>—</h3><p>This paper discusses the various ways for synthesizing polyaniline (PANI) and hybrid carbon nanotube (CNT) reinforced PANI nanocomposites. A series of polyaniline/functionalized multi-walled carbon nanotubes (PANI/f-MWCNTs) nanocomposites with varying concentrations (0–20% wt/wt) of f‑MWCNTs in PANI were prepared using in situ polymerization of aniline in an aqueous dispersion of f‑MWCNTs using FeCl<sub>3</sub>·6H<sub>2</sub>O as an oxidant. Functionalization of MWCNTs was achieved by their acid treatment. The dispersion of functionalized carbon nanotubes, filler concentration, and their alignment in the interior of PANI matrix affect their morphology. The structure and morphology of the obtained pure PANI and PANI/f-MWCNTs nanocomposites were characterized by using X-rays diffraction (XRD) and scanning electron microscopy (SEM). These techniques indicate that f-MWCNTs act as the core in the formation of a coaxial nanostructure. Thermogravimetric analysis (TGA) was carried out to study the thermal stability of the nanocomposites and the pristine polymer, which showed that the thermal stability of the nanocomposites increased with the increasing content of f-MWCNTs in PANI. The effect of MWCNT on the transport properties of PANI in the form of the transport parameters such as charge localization length, most probable hopping distance, and charge hopping energy in the temperature range 300–423 K was also studied.</p></div></div>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"64 4","pages":"573 - 580"},"PeriodicalIF":1.0000,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Science, Series B","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1134/S1560090422700233","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 1
Abstract—
This paper discusses the various ways for synthesizing polyaniline (PANI) and hybrid carbon nanotube (CNT) reinforced PANI nanocomposites. A series of polyaniline/functionalized multi-walled carbon nanotubes (PANI/f-MWCNTs) nanocomposites with varying concentrations (0–20% wt/wt) of f‑MWCNTs in PANI were prepared using in situ polymerization of aniline in an aqueous dispersion of f‑MWCNTs using FeCl3·6H2O as an oxidant. Functionalization of MWCNTs was achieved by their acid treatment. The dispersion of functionalized carbon nanotubes, filler concentration, and their alignment in the interior of PANI matrix affect their morphology. The structure and morphology of the obtained pure PANI and PANI/f-MWCNTs nanocomposites were characterized by using X-rays diffraction (XRD) and scanning electron microscopy (SEM). These techniques indicate that f-MWCNTs act as the core in the formation of a coaxial nanostructure. Thermogravimetric analysis (TGA) was carried out to study the thermal stability of the nanocomposites and the pristine polymer, which showed that the thermal stability of the nanocomposites increased with the increasing content of f-MWCNTs in PANI. The effect of MWCNT on the transport properties of PANI in the form of the transport parameters such as charge localization length, most probable hopping distance, and charge hopping energy in the temperature range 300–423 K was also studied.
期刊介绍:
Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed