Thermosensitive Nanocables Prepared by Surface-Initiated Atom Transfer Radical Polymerization

نویسندگان

  • Qingshan Wei
  • Wenbo Zhou
  • Jian Ji
  • Jiacong Shen
چکیده

Thermosensitive nanocables consisting of Au nanowire cores and poly(N-isopropylacrylamide) sheaths (denoted as Au/PNIPAAm) were synthesized by surface-initiated atom transfer radical polymerization (SI-ATRP). The formation of PNIPAAm sheath was verified by Fourier transform infrared (FTIR) and hydrogen nuclear magnetic resonance ((1)H NMR) spectroscopy. Transmission electron microscope (TEM) results confirmed the core/shell structure of nanohybrids. The thickness and density of PNIPAAm sheaths can be adjusted by controlling the amount of cross-linker during the polymerization. Signature temperature response was observed from Au/cross-linked-PNIPAAm nanocables. Such smart nanocables show immense potentials as building blocks for novel thermosensitive nanodevices in future.

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عنوان ژورنال:

دوره 4  شماره 

صفحات  -

تاریخ انتشار 2009