Grafting polyimides from nanodiamonds

Qingxin Zhang, Kimiyoshi Naito, Yoshihisa Tanaka, Yutaka Kagawa

Research output: Contribution to journalArticlepeer-review

77 Citations (Scopus)


A facile method to chemically grafting polyimides from diamonds was presented, and the hardness of the resulting diamond-based nanocomposites was evaluated by an ultra-microindentation technique. Critical challenges lied in achieving desirable interfacial adhesion between diamond particles and organic polymers to efficiently transfer the superior properties of diamond to polymer matrix in light weight and ultrasonic composites for use in hi-tech fields. A commercially available nanodiamond (ND) powder fabricated via detonation method was refluxed in thionyl chloride achieving acyl chloride groups on the ND surfaces and yielded acyl chloride-functionalized nanodiamonds (F-ND). Experimental investigation showed that the improvement to F-ND had helped to break the ND agglomerations during chemical functionalization and mixing, as well as anchored polyimide chains on diamond surface.

Original languageEnglish
Pages (from-to)536-538
Number of pages3
Issue number3
Publication statusPublished - 2008 Feb 12
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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