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Issue 71, 2017
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Synthesis and unimolecular micellar behavior of amphiphilic star-shaped block copolymers obtained via the Passerini three component reaction

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Abstract

A series of new amphiphilic star-shaped block copolymers with hydrophobic cores and hydrophilic shells was synthesized, using the Passerini three component step-growth polymerization (Passerini-3CP). The degree of polymerization of the Passerini hydrophobic cores (20, 10 and 5 repeating units) was controlled and the chain ends were quantitatively functionalized with different sized PEG-aldehydes and/or PEG-isocyanides via another Passerini reaction. The encapsulation and phase transfer properties of the star-shaped block copolymers were followed visually and by using UV/VIS-spectroscopy, using Orange II and Para Red dyes as guest molecules. The investigated polymers showed a unimolecular micellar behavior, as shown by dynamic light scattering (DLS) and the mentioned encapsulation experiments.

Graphical abstract: Synthesis and unimolecular micellar behavior of amphiphilic star-shaped block copolymers obtained via the Passerini three component reaction

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Article information


Submitted
14 Aug 2017
Accepted
14 Sep 2017
First published
21 Sep 2017

This article is Open Access

RSC Adv., 2017,7, 45195-45199
Article type
Paper

Synthesis and unimolecular micellar behavior of amphiphilic star-shaped block copolymers obtained via the Passerini three component reaction

S. Oelmann and M. A. R. Meier, RSC Adv., 2017, 7, 45195
DOI: 10.1039/C7RA08982A

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    [Original citation] - Published by The Royal Society of Chemistry.

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