Single crystals of cellulose triacetate were prepared by supercooling dilute solutions in mixtures of nitromethane and n ‐butanol. The crystals are approximately square in shape and thicken by spiral growths centered on screw dislocations. The chain molecules are perpendicular to the lamellae which are about 180 A. thick. In spite of their stiffness the molecules appear to assume folded configurations in the lamellae. Various morphological features of the crystals are described and discussed.
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R. St. John Manley (1963) studied this question.
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