Hydrogen bonding as the origin of both liquid crystallinity and polymer formation in some supramolecular materials

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Abstract

The use of lateral substitution on the aromatic rings of the diacid component of diacid/bispyridyl AABB supramolecular LC polymers is effective at retarding crystallization presumably by introducing a ‘carbuncle’ along the chain which interferes with the requisite efficient close packing of molecular units. We have examined both one and two chloro groups per ring and have observed a glass transition and fiber formation in the least crystalline complex.

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