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A new two-phase route to cadmium sulfide quantum dots using amphiphilic hyperbranched polymers as unimolecular nanoreactors

Authors

  • Yunfeng Shi,

    Corresponding author
    1. School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, People's Republic of China
    2. School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
    • School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, People's Republic of China, People's Republic of China
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  • Jiamiao Liang,

    1. Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Lanbo Liu,

    1. Clinical Medical College, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai 200025, People's Republic of China
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  • Lin He,

    1. Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Chunlai Tu,

    1. School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Xinqiu Guo,

    1. Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Bangshang Zhu,

    1. Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Chengyu Jin,

    1. Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Deyue Yan,

    1. School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Tao Han,

    Corresponding author
    1. Department of Instrument Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
    • Department of Instrument Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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  • Xinyuan Zhu

    Corresponding author
    1. School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
    2. Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
    • School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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Abstract

A new two-phase route was developed to prepare monodisperse cadmium sulfide (CdS) quantum dots (QDs) with a narrow size distribution. In a two-phase system, chloroform and water were used as separate solvents for palmitoyl chloride functionalized hyperbranched polyamidoamine (HPAMAM-PC) and cadmium acetate/sodium sulfide, respectively. The amphiphilic HPAMAM-PC, with a hydrophilic dendritic core and hydrophobic arms, formed stable unimolecular micelles in chloroform and was used to encapsulate aqueous Cd2+ ions. After the reaction with S2− ions from the aqueous phase, monodisperse and uniform-sized CdS QDs stabilized by HPAMAM-PC unimolecular micelles were obtained. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120:991–997, 2011

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