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- Title
Functional polyketones for the removal of calcium and magnesium from water (part I): synthesis and chemical characterization.
- Authors
Figaroa, Patrick A.; Miedema, Henk; Euverink, Gert-Jan; Picchioni, Francesco
- Abstract
The aim of the present study was to design and synthesize a new class of compounds for the softening of hard water, i.e. for the removal of the divalent cations Ca2+ and Mg2+. To that end, a class of alternating aliphatic polyketones (copolymers of ethylene and propylene with carbon monoxide, PK30) was functionalized with a variety of amines employing the Paal-Knorr reaction, a relatively straightforward reaction-route to synthesize functional polyketones. The amino groups included aliphatic and aromatic structures with a molecular weight ranging from 74.1 to 129.2 g/mol. Elemental analysis was used to establish the degree of functionalization, whereas ¹H-NMR spectroscopy was used to identify the molecular structure of the prepared polymers. Model compounds were used as reference for guiding structure determination and for studying the (relative) reaction kinetics.
- Subjects
POLYKETONES; WATER softening; WATER hardness; CATIONS; CARBON monoxide
- Publication
Pure & Applied Chemistry, 2017, Vol 89, Issue 1, p41
- ISSN
0033-4545
- Publication type
Article
- DOI
10.1515/pac-2016-1006