Precisely installing gold nanoparticles at the core/shell interface of micellar assemblies of triblock copolymers |
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| Authors: | Kangning Zhu Zhiyuan Zhu Haiou Zhou Jingyan Zhang Shiyong Liu |
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| Institution: | a CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem(Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;
b School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China |
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| Abstract: | Two reduction-cleavable ABA triblock copolymers possessing two disulfide linkages, PMMA-ss-PMEO3MA-ss-PMMA and PDEA-ss-PEO-ss-PDEA were synthesized via facile substitution reactions from homopolymer precursors, where PMMA, PMEO3MA, PDEA, and PEO represent poly(methyl methacrylate), poly(tri(ethylene glycol) monomethyl ether methacrylate, poly(2-(diethylamino)ethyl methacrylate), and poly(ethylene oxide), respectively. Spherical micelles were obtained through supramolecular self-assembly of these two triblock copolymers in aqueous solutions. The resultant micelles with abundant disulfide bonds could serve as soft templates and precisely accommodate gold nanoparticles in the core/shell interface as a result of the formation of Au-S bonds. |
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| Keywords: | Triblock copolymer Disulfide bond Self-assembly Gold nanoparticle Core/shell interface |
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