Introduction of Quantum Dots into PNIPAM microspheres by precipitation polymerization above LCST |
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Authors: | Dominik Jańczewski Ming-Yong Han G. Julius Vancso |
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Affiliation: | a Institute of Materials Research and Engineering A∗STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, Singapore b Division of Bioengineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore |
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Abstract: | Amphiphilic polymers having different polymerizable functional groups were synthesised and investigated as coatings for semiconductor nanoparticles (Quantum Dots, QDs). QDs coated with hydrophobic ligands were successfully transferred into water using these polymers and the assemblies were co-polymerized with N-isopropylacrylamide (NIPAM) by a precipitation polymerization method. In the resulting hybrid microspheres, QDs were uniformly distributed within the PNIPAM matrix. The influence of different polymerizable groups and counter ions of the amphiphilic polymer on the copolymerization process were investigated. |
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Keywords: | Quantum Dot (QD) Amphiphilic polymer PNIPAM Microgels |
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