Abstract
INDIVIDUAL spherical molecules of glassy amorphous polymers, with molecular weights of more than about 5 × 105, can be deposited from a solvent-precipitant mixture, on to a thin substrate and observed in the electron microscope after shadowing with a heavy metal1,2.
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References
Nasini, A. G., Ostacoli, G., Saini, G., Maldifassi, G., and Trossarelli, L., Suppl. to Ric. Sci. Mem., 25, 432 (1955).
Richardson, M. J., Proc. Roy. Soc., A, 279, 50 (1964).
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QUAYLE, D. Collapse of Polyacrylamide Molecules on Electron Irradiation. Nature 209, 803–804 (1966). https://doi.org/10.1038/209803a0
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DOI: https://doi.org/10.1038/209803a0
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