Fluorescence microscopy as an alternative to electron microscopy for microscale dispersion evaluation of organic–inorganic composites

Weijiang Guan, Si Wang, Chao Lu () and Ben Zhong Tang ()
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Weijiang Guan: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Si Wang: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Chao Lu: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Ben Zhong Tang: Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Hong Kong University of Science and Technology

Nature Communications, 2016, vol. 7, issue 1, 1-7

Abstract: Abstract Inorganic dispersion is of great importance for actual implementation of advanced properties of organic–inorganic composites. Currently, electron microscopy is the most conventional approach for observing dispersion of inorganic fillers from ultrathin sections of organic–inorganic composites at the nanoscale by professional technicians. However, direct visualization of macrodispersion of inorganic fillers in organic–inorganic composites using high-contrast fluorescent imaging method is hampered. Here we design and synthesize a unique fluorescent surfactant, which combines the properties of the aggregation-induced emission (AIE) and amphiphilicity, to image macrodispersion of montmorillonite and layered double hydroxide fillers in polymer matrix. The proposed fluorescence imaging provides a number of important advantages over electron microscope imaging, and opens a new avenue in the development of direct three-dimensional observation of inorganic filler macrodispersion in organic–inorganic composites.

Date: 2016
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DOI: 10.1038/ncomms11811

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