Cargando…

Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition

A facile, single-step, [4+2] Diels–Alder cycloaddition reaction for the surface functionalization of single-walled carbon nanotubes (SWNTs) with end-capped polystyrene chains is presented. The thermal cycloaddition reaction took place at high temperature (~230 °C) without any catalyst between the sp...

Descripción completa

Detalles Bibliográficos
Autores principales: Stathouraki, Maria-Malvina, Pantazidis, Christos, Mygiakis, Emmanouil, Avgeropoulos, Apostolos, Sakellariou, Georgios
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038725/
https://www.ncbi.nlm.nih.gov/pubmed/33917281
http://dx.doi.org/10.3390/polym13071169
_version_ 1783677441902903296
author Stathouraki, Maria-Malvina
Pantazidis, Christos
Mygiakis, Emmanouil
Avgeropoulos, Apostolos
Sakellariou, Georgios
author_facet Stathouraki, Maria-Malvina
Pantazidis, Christos
Mygiakis, Emmanouil
Avgeropoulos, Apostolos
Sakellariou, Georgios
author_sort Stathouraki, Maria-Malvina
collection PubMed
description A facile, single-step, [4+2] Diels–Alder cycloaddition reaction for the surface functionalization of single-walled carbon nanotubes (SWNTs) with end-capped polystyrene chains is presented. The thermal cycloaddition reaction took place at high temperature (~230 °C) without any catalyst between the sp(2) network of carbon nanotubes, which acted as dienophile, and the diphenylethylene cyclobutene (DPE-CB) terminal group of the polystyrene chain. Anionic polymerization was employed for the synthesis of the polystyrene macromolecule, and successful and quantitative end-capping reaction with the DPE-CB molecule was confirmed by matrix-assisted laser desorption/ionization time of flight mass spectroscopy. Thermogravimetric analysis revealed the wt % of the grafted macromolecule on the CNT surface as well as the grafting density of the polymer chains on the SWNTs (0.027 chains nm(−2)). Direct evidence for the surface functionalization and the presence of thin polystyrene film was obtained by transmission electron microscopy (TEM) and by atomic force microscopy (AFM).
format Online
Article
Text
id pubmed-8038725
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-80387252021-04-12 Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition Stathouraki, Maria-Malvina Pantazidis, Christos Mygiakis, Emmanouil Avgeropoulos, Apostolos Sakellariou, Georgios Polymers (Basel) Article A facile, single-step, [4+2] Diels–Alder cycloaddition reaction for the surface functionalization of single-walled carbon nanotubes (SWNTs) with end-capped polystyrene chains is presented. The thermal cycloaddition reaction took place at high temperature (~230 °C) without any catalyst between the sp(2) network of carbon nanotubes, which acted as dienophile, and the diphenylethylene cyclobutene (DPE-CB) terminal group of the polystyrene chain. Anionic polymerization was employed for the synthesis of the polystyrene macromolecule, and successful and quantitative end-capping reaction with the DPE-CB molecule was confirmed by matrix-assisted laser desorption/ionization time of flight mass spectroscopy. Thermogravimetric analysis revealed the wt % of the grafted macromolecule on the CNT surface as well as the grafting density of the polymer chains on the SWNTs (0.027 chains nm(−2)). Direct evidence for the surface functionalization and the presence of thin polystyrene film was obtained by transmission electron microscopy (TEM) and by atomic force microscopy (AFM). MDPI 2021-04-06 /pmc/articles/PMC8038725/ /pubmed/33917281 http://dx.doi.org/10.3390/polym13071169 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Stathouraki, Maria-Malvina
Pantazidis, Christos
Mygiakis, Emmanouil
Avgeropoulos, Apostolos
Sakellariou, Georgios
Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition
title Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition
title_full Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition
title_fullStr Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition
title_full_unstemmed Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition
title_short Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels–Alder Cycloaddition
title_sort functionalization of single-walled carbon nanotubes with end-capped polystyrene via a single-step diels–alder cycloaddition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038725/
https://www.ncbi.nlm.nih.gov/pubmed/33917281
http://dx.doi.org/10.3390/polym13071169
work_keys_str_mv AT stathourakimariamalvina functionalizationofsinglewalledcarbonnanotubeswithendcappedpolystyreneviaasinglestepdielsaldercycloaddition
AT pantazidischristos functionalizationofsinglewalledcarbonnanotubeswithendcappedpolystyreneviaasinglestepdielsaldercycloaddition
AT mygiakisemmanouil functionalizationofsinglewalledcarbonnanotubeswithendcappedpolystyreneviaasinglestepdielsaldercycloaddition
AT avgeropoulosapostolos functionalizationofsinglewalledcarbonnanotubeswithendcappedpolystyreneviaasinglestepdielsaldercycloaddition
AT sakellariougeorgios functionalizationofsinglewalledcarbonnanotubeswithendcappedpolystyreneviaasinglestepdielsaldercycloaddition