Thermosensitive Nanocables Prepared by Surface-Initiated Atom Transfer Radical Polymerization

Autor: Wei Qingshan, Zhou Wenbo, Ji Jian, Shen Jiacong
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Nanoscale Research Letters, Vol 4, Iss 1, Pp 84-89 (2008)
Druh dokumentu: article
ISSN: 1931-7573
1556-276X
DOI: 10.1007/s11671-008-9206-5
Popis: Abstract 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 (1H 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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