Covalent crosslinking of carbon nanostructures

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• 作者：URMIMALA MAITRA (1)
  M PANDEESWAR (1)
  T GOVINDARAJU (1) tgraju@jncasr.ac.in
• 关键词：Covalent crosslinking – ; carbon nanostructures – ; binary conjugates – ; nanocomposites – ; electron microscopy – ; optical properties
• 刊名：Journal of Chemical Sciences
• 出版年：2012
• 出版时间：May 2012
• 年：2012
• 卷：124
• 期：3
• 页码：551-556
• 全文大小：490.6 KB
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• 作者单位：1. New Chemistry Unit, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560 064, India
• ISSN：0973-7103

文摘

Covalent crosslinking of carbon nanostructures of different dimensionalities such as nanodiamond, single walled carbon nanotubes (SWNTs) and graphene can yield useful homo- and hetero-binary conjugates. Binary conjugation of the nanocarbons has been achieved by introducing symmetrical amide-linkages between acid (-COOH) functionalized nanocarbons and a diamine-linker. The binary conjugates have been characterized by using transmission electron microscopy as well as infrared, Raman and photoluminescence spectroscopies. Dispersions of covalently crosslinked binary conjugates of nanocarbons could be obtained in dimethyl formamide (DMF). Composites of the binary conjugates with polymer can be readily prepared by using the DMF suspensions.