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Polymers 2015, 7(4), 695-716; doi:10.3390/polym7040695

Tailoring Confinement: Nano-Carrier Synthesis via Z-RAFT Star Polymerization

Institute of Physical Chemistry, Georg-August-University Göttingen, Tammannstr. 6, D-37077 Göttingen, Germany
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Academic Editor: Sébastien Perrier
Received: 19 February 2015 / Revised: 18 March 2015 / Accepted: 2 April 2015 / Published: 10 April 2015
(This article belongs to the Special Issue Complex Macromolecular Architectures)
View Full-Text   |   Download PDF [2127 KB, uploaded 10 April 2015]   |  

Abstract

A new pathway to nano-sized hollow-sphere particles from six-arm star polymers with an amphiphilic core-corona structure, synthesized in a four-step-procedure by means of reversible addition-fragmentation chain transfer (RAFT) polymerization is presented, in order to achieve more stable and versatile nano-container systems, which could be applied in the fields of drug delivery or catalyst storage. Star-shaped amphiphilic, diblock copolymers serve as globular platforms for synthesizing uniform hollow structures. By the introduction of monomer units carrying UV-cross-linkable dimethyl maleimido functionalities into the outer sphere of these star polymers, the carrier’s shell could be stabilized under UV-irradiation. After removal of the RAFT-core—constituting the central hub of the star polymer—by aminolysis, the carrier is ready for loading. View Full-Text
Keywords: star polymers; reversible-addition fragmentation chain transfer (RAFT); cross-linking; amphiphilic block copolymers star polymers; reversible-addition fragmentation chain transfer (RAFT); cross-linking; amphiphilic block copolymers
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Förster, N.; Schmidt, S.; Vana, P. Tailoring Confinement: Nano-Carrier Synthesis via Z-RAFT Star Polymerization. Polymers 2015, 7, 695-716.

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