Formation of nanostructured materials via coalescence of amphiphilic hollow particles

Panya Sunintaboon, Kin Man Ho, Pei Li, S. Z D Cheng, Frank W. Harris

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)


A new, simplified route to amphiphilic core-shell nanotubes, microfibers, and microrods has been developed that does not involve the traditional utilization of well-defined block copolymers. Thus, amphiphilic graft copolymers (PEI-g-PMMA) are prepared by an aqueous free radical polymerization that self-assemble in situ to form uniform core-shell nanoparticles. The hydrophobic homopolymer (PMMA) that is also formed is incorporated in the cores. Slight cross-linking of the shells followed by extraction of the homopolymer results in hollow nanoparticles that coalesce to form nanotubes. When the shells are not cross-linked, the hollow particles coalesce to form microrods and microfibers. The sizes and shapes of the micromaterials can be controlled by varying the experimental conditions.
Original languageEnglish
Pages (from-to)2168-2169
Number of pages2
JournalJournal of the American Chemical Society
Issue number7
Publication statusPublished - 22 Feb 2006

ASJC Scopus subject areas

  • General Chemistry


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