Halloysite Nanotubes Noncovalently Functionalised with SDS Anionic Surfactant and PS-b-P4VP Block Copolymer for Their Effective Dispersion in Polystyrene as UV-Blocking Nanocomposite Films
Joint Authors
Tzounis, Lazaros
Herlekar, Shreya
Tzounis, Antonios
Charisiou, Nikolaos D.
Goula, Maria
Stamm, Manfred
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-19
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
A simple and versatile method is reported for the noncovalent functionalisation of natural and “green” halloysite nanotubes (HNTs) allowing their effective dispersion in a polystyrene (PS) thermoplastic matrix via solvent mixing.
Initially, HNTs (pristine HNTs) were modified with physically adsorbed surfactant molecules of sodium dodecyl sulphate (SDS) and PS-b-P4VP [P4VP: poly(4-vinylpyridine)] block copolymer (BCP).
Hereafter, SDS and BCP modified HNTs will be indicated as SDS-m-HNT and BCP-m-HNT.
Nanocomposite films with 1, 2, and 5 wt.% HNT loadings were prepared, abbreviated as PS-SDS-m-HNT1, PS-SDS-m-HNT2, and PS-SDS-m-HNT5 and PS-BCP-m-HNT1, PS-BCP-m-HNT2, and PS-BCP-m-HNT5 (where 1, 2, and 5 correspond to the wt.% of HNTs).
All nanocomposites depicted improved thermal degradation compared to the neat PS as revealed by thermogravimetric analysis (TGA).
Transmission electron microscopy (TEM) confirmed the good dispersion state of HNTs and the importance of modification by SDS and BCP.
X-ray diffraction (XRD) studies showed the characteristic interlayer spacing between the two silicate layers of pristine and modified HNTs.
The PS/HNT nanocomposite films exhibited excellent ultraviolent-visible (UV-vis) absorbance properties and their potential application as UV-filters could be envisaged.
American Psychological Association (APA)
Tzounis, Lazaros& Herlekar, Shreya& Tzounis, Antonios& Charisiou, Nikolaos D.& Goula, Maria& Stamm, Manfred. 2017. Halloysite Nanotubes Noncovalently Functionalised with SDS Anionic Surfactant and PS-b-P4VP Block Copolymer for Their Effective Dispersion in Polystyrene as UV-Blocking Nanocomposite Films. Journal of Nanomaterials،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1182944
Modern Language Association (MLA)
Tzounis, Lazaros…[et al.]. Halloysite Nanotubes Noncovalently Functionalised with SDS Anionic Surfactant and PS-b-P4VP Block Copolymer for Their Effective Dispersion in Polystyrene as UV-Blocking Nanocomposite Films. Journal of Nanomaterials No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1182944
American Medical Association (AMA)
Tzounis, Lazaros& Herlekar, Shreya& Tzounis, Antonios& Charisiou, Nikolaos D.& Goula, Maria& Stamm, Manfred. Halloysite Nanotubes Noncovalently Functionalised with SDS Anionic Surfactant and PS-b-P4VP Block Copolymer for Their Effective Dispersion in Polystyrene as UV-Blocking Nanocomposite Films. Journal of Nanomaterials. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1182944
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182944