SLCPs main-chain

Utilization of the single hydrogen bond between pyridine and benzoic acids in SLCP s has been a source of inspiration for other groups in the development of main-chain supramolecular polymers based on diacids and dipyridines.53-56 Supramolecular rod-coil polymers have been developed by assembly of 4,4 -bipyridines and telechelic polypropylene oxide with benzoic acid end-groups, which show highly ordered liquid crystalline phases.57 The use of tartaric acid derivatives in combination with bipyridine units resulted in the formation of hydrogen-bonded, chiral main-chain LCP s, as has been shown by circular dichroism measurements, optical microscopy, and X-ray data.58,59... 

In principle, there are a number of ways that supramolecular chemistry can be utilized to influence/access LC polymeric systems. One way is to access different polymeric architectures, such as main-chain, side-chain, or network structures (Fig. 3). For example, main-chain SLCPs can be formed through the aggregation of low(er) molecular weight ditopic compounds whose chain ends interact with each other through specific non-covalent interactions. Conceptually, this can occur in a number of different ways. The simplest conceptual... 

An example of side-chain SLCPs whose mesogen consists of part of the main-chain as well as the side chain (Fig. 3h) has been reported by Kato et al. [107]. In this case the hydrogen bond mesogenic motif utilized was a benzoic acid (as part of the small molecule side chain 42) with a 2,6-diamino-... 

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