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Double twist in helical polymer "soft" crystals
Journal article   Peer reviewed

Double twist in helical polymer "soft" crystals

C Y Li, SZD Cheng, J J Ge, F Bai, J Z Zhang, I K Mann, F W Harris, L C Chien, D H Yan, T B He, …
Physical review letters, v 83(22), pp 4558-4561
29 Nov 1999
DOI: https://doi.org/10.1103/PhysRevLett.83.4558
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Physical Sciences Physics Physics, Multidisciplinary Science & Technology
In natural and synthetic materials having non-racemic chiral centers, chirality and structural ordering each play a distinct role in the formation of ordered states. Configurational chirality can be extended to morphological chirality when the phase, structures possess low liquid crystalline order. In the crystalline states the crystallization process suppresses the chiral helical morphology due to strong ordering interactions, In this Letter, we report the first observation of helical single lamellar crystals of synthetic non-racemic chiral polymers. Experimental evidence shows that the molecular chains twist along both the long and short axes of the helical lamellar crystals, which is the first time a double-twist molecular orientation in a helical crystal has been observed.

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100 citations in Web of Science
100 citations in Scopus

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Domestic collaboration
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Web of Science research areas
Physics, Multidisciplinary
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