Answers are grounded in this paper and cite their sources.
Free‐standing films of C60‐polyethoxysiloxane hybrids were prepared, and their optical limiting properties were evaluated. Triethoxysilylated C60, with a formula of H3C60[Si(OEt)3]3, was synthesized by the hydrolysilylation of C60 with triethoxysilane in the presence of platinum catalyst. C60‐polyethoxysiloxanes were prepared by a cohydrolytic polycondensation of triethoxysilylated C60 with tetraethoxysilane in a molar ratio of Si/C60 = 10–1000 under nitrogen flow. The molecular weight of C60‐polyethoxysiloxane increased with a decrease of Si/C60. Transparent and flexible free‐standing films were prepared by aging an ethanol solution of C60‐polyethoxysiloxane at 80 °C for 6–8 days. The mechanical strength and Young's modulus increased with a decrease in Si/C60. These free‐standing films showed an optical limiting property, for which the threshold value decreased from 1163 mJ/cm2 (Si/C60 = 1000) to 130 mJ/cm2 (Si/C60 = 10) with a decrease of Si/C60.
No takes yet. Share an insight, caveat, or question.
Gunji et al. (2007) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: