Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar

[Image: see text] Water-soluble tetrasulfonate resorcin[4]arene (1a and 1c) and pyrogallol[4]arene (1b) macrocycles were synthesized and investigated for their dispersing properties in cement-based mortars. Mortar tests clearly show that these polyhydroxylated macrocycles (nonpolymeric) work as ceme...

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Autores principales: Capacchione, Clotilde, Picariello, Davide, Della Sala, Paolo, Talotta, Carmen, Neri, Placido, Bruno, Immacolata, Pauciulo, Antonio, Bartiromo, Andrea Roberta, Gliubizzi, Rocco, Gaeta, Carmine
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7391848/
https://www.ncbi.nlm.nih.gov/pubmed/32743197
http://dx.doi.org/10.1021/acsomega.0c01837
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author Capacchione, Clotilde
Picariello, Davide
Della Sala, Paolo
Talotta, Carmen
Neri, Placido
Bruno, Immacolata
Pauciulo, Antonio
Bartiromo, Andrea Roberta
Gliubizzi, Rocco
Gaeta, Carmine
author_facet Capacchione, Clotilde
Picariello, Davide
Della Sala, Paolo
Talotta, Carmen
Neri, Placido
Bruno, Immacolata
Pauciulo, Antonio
Bartiromo, Andrea Roberta
Gliubizzi, Rocco
Gaeta, Carmine
author_sort Capacchione, Clotilde
collection PubMed
description [Image: see text] Water-soluble tetrasulfonate resorcin[4]arene (1a and 1c) and pyrogallol[4]arene (1b) macrocycles were synthesized and investigated for their dispersing properties in cement-based mortars. Mortar tests clearly show that these polyhydroxylated macrocycles (nonpolymeric) work as cement dispersants. Setting time determinations indicate that the macrocycles 1a and 1b show a retarding effect that is reminiscent of the behavior of superplasticizers (SPs) functionalized with polyhydroxylated β-CDs. Finally, the addition of sulfate anions to the cement paste does not affect the dispersing abilities of 1b, probably due to the sulfate anion capture by H-bonding interactions with its OH groups at the upper rim.
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spelling pubmed-73918482020-07-31 Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar Capacchione, Clotilde Picariello, Davide Della Sala, Paolo Talotta, Carmen Neri, Placido Bruno, Immacolata Pauciulo, Antonio Bartiromo, Andrea Roberta Gliubizzi, Rocco Gaeta, Carmine ACS Omega [Image: see text] Water-soluble tetrasulfonate resorcin[4]arene (1a and 1c) and pyrogallol[4]arene (1b) macrocycles were synthesized and investigated for their dispersing properties in cement-based mortars. Mortar tests clearly show that these polyhydroxylated macrocycles (nonpolymeric) work as cement dispersants. Setting time determinations indicate that the macrocycles 1a and 1b show a retarding effect that is reminiscent of the behavior of superplasticizers (SPs) functionalized with polyhydroxylated β-CDs. Finally, the addition of sulfate anions to the cement paste does not affect the dispersing abilities of 1b, probably due to the sulfate anion capture by H-bonding interactions with its OH groups at the upper rim. American Chemical Society 2020-07-17 /pmc/articles/PMC7391848/ /pubmed/32743197 http://dx.doi.org/10.1021/acsomega.0c01837 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Capacchione, Clotilde
Picariello, Davide
Della Sala, Paolo
Talotta, Carmen
Neri, Placido
Bruno, Immacolata
Pauciulo, Antonio
Bartiromo, Andrea Roberta
Gliubizzi, Rocco
Gaeta, Carmine
Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar
title Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar
title_full Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar
title_fullStr Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar
title_full_unstemmed Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar
title_short Dispersing and Retarding Properties of Water-Soluble Tetrasulfonate Resorcin[4]arene and Pyrogallol[4]arene Macrocycles in Cement-Based Mortar
title_sort dispersing and retarding properties of water-soluble tetrasulfonate resorcin[4]arene and pyrogallol[4]arene macrocycles in cement-based mortar
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7391848/
https://www.ncbi.nlm.nih.gov/pubmed/32743197
http://dx.doi.org/10.1021/acsomega.0c01837
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