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Synthesis and tensioactive properties of PEO-b-polyphosphate copolymers

Authors :
Guy Broze
Philippe Lecomte
Daniel G. M. Molin
Raphaël Riva
Stéphanie Vanslambrouck
Benoît Clement
Christine Jérôme
Leo H. Koole
RS: CARIM - R3 - Vascular biology
Biomedische Technologie
Fysiologie
Source :
RSC Advances, 5(35), 27330-27337. Royal Society of Chemistry
Publication Year :
2015
Publisher :
Royal Society of Chemistry, 2015.

Abstract

Poly(ethylene oxide) (PEO)-b-polyphosphate copolymers made of hydrophilic PEO and hydrophobic polyphosphates are amphiphilic copolymers prone to self-assemble in water into nanoparticles. In this work, nanoparticles are obtained by the self-assembly of PEO-b-polyphosphate copolymers in water in the absence of any organic co-solvent whatever the length of the pendant alkyl chain (between 4 and 7 carbon atoms) of the polyphosphate block. Remarkably, this solvent-free process remains efficient even for the most hydrophobic polyphosphate blocks. The critical aggregation concentration (CAC) of the block copolymers was determined by pyrene probe fluorescence. Finally, the efficiency of these copolymer surfactants to decrease the air-water interface was measured by air-bubble tensiometry.

Details

Language :
English
ISSN :
20462069
Volume :
5
Issue :
35
Database :
OpenAIRE
Journal :
RSC Advances
Accession number :
edsair.doi.dedup.....a9a7fc0659763450ed68c7f374a41b87
Full Text :
https://doi.org/10.1039/c5ra02205c