Article (Scientific journals)
An environmentally benign post-polymerization functionalization strategy towards unprecedented poly(vinylamine) polyHIPEs
Jurjevec, Sarah; Debuigne, Antoine; Žagar, Ema et al.
2021In Polymer Chemistry, 12 (8), p. 1155-1164
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Keywords :
foam
Abstract :
[en] Interconnected highly porous poly(vinylamine) monoliths are produced by post-polymerization hydrolysis of emulsion-templated poly(N-vinylformamide) polyHIPEs (polymerized high internal phase emulsions). Unlike previous work, in which polyHIPEs were amine-functionalized only to a small extent, our approach includes the hydrolysis of the formyl groups of the highly porous poly(N-vinylformamide) monolith, resulting in an exceptionally high degree of amine-functionalization, i.e. up to 10 mmol of primary amine functional groups per gram or 12 mmol of nitrogen per gram of polyHIPE. Importantly, this post-polymerization functionalization strategy preserves the polyHIPE features, such as morphology, porosity and three-dimensional (3D) interconnectivity and is carried out without the use of hazardous organic solvents, toxic amine reagents or catalysts. The resulting poly(vinylamine)-polyHIPEs exhibit pH-responsive swelling and water absorption behaviour and prove to be promising candidates for metal ion capture. Overall, the reported post-functionalization strategy is attractive for the production of unprecedented, high-density, primary amine-functionalized 3D-interconnected porous organic foams, materials of great interest for further derivatization and use in numerous applications.
Research center :
CESAM - Complex and Entangled Systems from Atoms to Materials - ULiège
CERM - Center for Education and Research on Macromolecules
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Jurjevec, Sarah;  National Institute of Chemistry, Department of Polymer Chemistry and Technology, Slovenia
Debuigne, Antoine  ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Žagar, Ema;  National Institute of Chemistry, Department of Polymer Chemistry and Technology, Slovenia
Kovačič, Sebastijan;  National Institute of Chemistry, Department of Polymer Chemistry and Technology, Slovenia
Language :
English
Title :
An environmentally benign post-polymerization functionalization strategy towards unprecedented poly(vinylamine) polyHIPEs
Publication date :
28 February 2021
Journal title :
Polymer Chemistry
ISSN :
1759-9954
eISSN :
1759-9962
Publisher :
Royal Society of Chemistry, United Kingdom
Volume :
12
Issue :
8
Pages :
1155-1164
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Slovenian Research Agency
Slovenian Ministry of Education; Science and Technology
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 16 February 2021

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