Achieving Individual-Nanotube Dispersion at High Loading in Single-Walled Carbon Nanotube Composites


  • The authors are grateful for funding from the National Science Foundation (grant no CTS-0330350), the School of Chemical Sciences at UIUC, and a grant from the Molecular Electronics group, Dupont Co.


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Lack of matrix dispersion is one principle reason why single-walled carbon nanotube (SWNT) composites have not yielded the enormous enhancement of mechanical properties predicted by theory. Non-destructive methods for gauging matrix dispersion, using near-IR fluorescence are reported (see Figure), along with new materials and processes that exhibit individual, SWNT dispersion in a matrix at relatively high loading (up to 20 vol.-%).