Abstract
The defects inherent in semicrystalline linear polymers and their behavior during the drawing are considered. These defects are classified in accordance with their relation to different scale levels of polymer morphology and their conformational or crystallographic nature. The topological stability of various structural imperfections is discussed. The transformations of the defect structure of polymers during the drawing are analyzed. Particular attention is given to the annihilation of original defects and the creation of new ones during the rearrangement of the initial supermolecular structure into the microfibrils. The plastic deformation of the fibrillar is considered. A dislocation mechanism is proposed for the slippage of microfibrils during the drawing. Dislocation-disclination models are worked out for the kink bands in oriented polymers. These models permit to calculate the internal stresses induced by kink bands and to analyze the mechanisms of microcracking caused by kinking.
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© 1993 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG
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Pertsev, N.A. (1993). Transformations of defect structure of polymers during drawing. In: Myasnikova, L., Marikhin, V.A. (eds) Orientational Phenomena in Polymers. Progress in Colloid & Polymer Science, vol 92. Steinkopff. https://doi.org/10.1007/BFb0115448
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DOI: https://doi.org/10.1007/BFb0115448
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