Abstract
REGENERATED cellulose sheet is shown by D. G. Drummond to be birefringent in a way which might reasonably be expected from extrapolation of Spence's results for sheets made from cellulose esters. The relative unimportance of side-chain orientation in cellulose itself results in a generally greater birefringence and a change in the 'slow ray direction' as compared with the ester films. Numerical results for regenerated cellulose sheets are given.
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Points from Foregoing Letters. Nature 145, 73 (1940). https://doi.org/10.1038/145073a0
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DOI: https://doi.org/10.1038/145073a0