Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBA

The paper presents the preparation of new ionic liquids based on hexamethylenetetramine with bis(trifluoromethanesulfonyl)imide and dicyanamide anion, which were characterized in detail in terms of their purity (Ion Chromatography) and thermal properties (Differential Scanning Calorimetry), as well...

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Main Authors: Dawid Zielinski, Andrea Szpecht, Paulina Hinc, Marcin Smiglak
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/2/892
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author Dawid Zielinski
Andrea Szpecht
Paulina Hinc
Marcin Smiglak
author_facet Dawid Zielinski
Andrea Szpecht
Paulina Hinc
Marcin Smiglak
author_sort Dawid Zielinski
collection DOAJ
description The paper presents the preparation of new ionic liquids based on hexamethylenetetramine with bis(trifluoromethanesulfonyl)imide and dicyanamide anion, which were characterized in detail in terms of their purity (Ion Chromatography) and thermal properties (Differential Scanning Calorimetry), as well as stability. The obtained substances were used to develop curing systems with ethylene glycol, which were successfully tested for their application with bisphenol A diglycidyl ether molecule. In addition, the curing process and its relationship to the structure of the ionic liquid are characterized in detail. The research showed that hexamethylenetetramine-based new ionic liquids can be successfully designed using well-known and simple synthetic methods—the Delepine reaction. Moreover, attention was paid to their stability, related limitations, and the application of hexamethylenetetramine-based ionic liquids in epoxy-curing systems.
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spelling doaj.art-e7eac0ba9e6a49fa95f0492f803668672023-11-30T23:46:25ZengMDPI AGMolecules1420-30492023-01-0128289210.3390/molecules28020892Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBADawid Zielinski0Andrea Szpecht1Paulina Hinc2Marcin Smiglak3Poznan Science and Technology Park, Adam Mickiewicz University Foundation, 61-612 Poznań, PolandPoznan Science and Technology Park, Adam Mickiewicz University Foundation, 61-612 Poznań, PolandFaculty of Chemistry, Adam Mickiewicz University in Poznań, 61-614 Poznań, PolandPoznan Science and Technology Park, Adam Mickiewicz University Foundation, 61-612 Poznań, PolandThe paper presents the preparation of new ionic liquids based on hexamethylenetetramine with bis(trifluoromethanesulfonyl)imide and dicyanamide anion, which were characterized in detail in terms of their purity (Ion Chromatography) and thermal properties (Differential Scanning Calorimetry), as well as stability. The obtained substances were used to develop curing systems with ethylene glycol, which were successfully tested for their application with bisphenol A diglycidyl ether molecule. In addition, the curing process and its relationship to the structure of the ionic liquid are characterized in detail. The research showed that hexamethylenetetramine-based new ionic liquids can be successfully designed using well-known and simple synthetic methods—the Delepine reaction. Moreover, attention was paid to their stability, related limitations, and the application of hexamethylenetetramine-based ionic liquids in epoxy-curing systems.https://www.mdpi.com/1420-3049/28/2/892hexamethylenetetramineionic liquidsepoxy resinethylene glycolcuring agentcomposites
spellingShingle Dawid Zielinski
Andrea Szpecht
Paulina Hinc
Marcin Smiglak
Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBA
Molecules
hexamethylenetetramine
ionic liquids
epoxy resin
ethylene glycol
curing agent
composites
title Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBA
title_full Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBA
title_fullStr Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBA
title_full_unstemmed Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBA
title_short Synthesis and Behavior of Hexamethylenetetramine-Based Ionic Liquids as an Active Ingredient in Latent Curing Formulations with Ethylene Glycol for DGEBA
title_sort synthesis and behavior of hexamethylenetetramine based ionic liquids as an active ingredient in latent curing formulations with ethylene glycol for dgeba
topic hexamethylenetetramine
ionic liquids
epoxy resin
ethylene glycol
curing agent
composites
url https://www.mdpi.com/1420-3049/28/2/892
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AT paulinahinc synthesisandbehaviorofhexamethylenetetraminebasedionicliquidsasanactiveingredientinlatentcuringformulationswithethyleneglycolfordgeba
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