Direct measurement of the end-to-end distance of individual polyfluorene polymer chains.
(2005) ChemPhysChem : a European journal of chemical physics and physical chemistry — Vol. 6, n° 11, p. 2286-2294 (2005)
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- Abstract
- Wide-field imaging of individual multichromophoric molecules and successive photobleaching were used to determine, accurately, the relative position of the chromophores in such systems. First, a polyphenylene dendrimer with well-defined geometry was used to establish the accuracy in localization that can be obtained by this methodology. For a signal-to-noise ratio of 20, interchromophoric distances could be measured with 4 nm accuracy. Next, the method was used to determine the end-to-end distribution of an end-capped polyfluorene polymer. From comparison between the experimental and simulated distributions, information on the conformation of the polymer could be deduced. It was found that the polymer has a nonlinear conformation. A conjugation length of six monomer units gave the best fit of the experimental data to the proposed model.
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Muls, B., Uji-I, H., Melnikov, S., Moussa, A., Verheijen, W., Soumillion, J.-P., Josemon, J., Müllen, K., & Hofkens, J. (2005). Direct measurement of the end-to-end distance of individual polyfluorene polymer chains. ChemPhysChem : a European journal of chemical physics and physical chemistry, 6(11), 2286-2294. https://doi.org/10.1002/cphc.200500235 (Original work published 2005)