Supramolecular architecture tubular

Percec V, Heck J, Tomazos D, Falkenberg F, Blackwell H, Ungar G (1993) Self-assembly of taper-shaped monoesters of oligo(ethylene oxide) with 3,4,5-tris(p-dodecyloxybenzyloxy) benzoic acid and of their polymethacrylates into tubular supramolecular architectures displaying a columnar mesophase. J Chem Soe Ptakin Trans 1(22) 2799-2811. doi 10.1039/P19930002799... 

Their corresponding polymethacrylates (8) were obtained by free radical polymerization. These taper-shaped monoesters of oligo(ethylene oxide) (EO) with 3,4,5-tris(/ -dodecyloxybenzyloxy)benzoic acid and their corresponding polymers self-assembled into a tubular supramolecular architecture displaying an enantiotropic columnar hexagonal mesophase. This interesting supramolecular architecture is mentioned in the next section. 

As inspired by hehcal and tubular architectures observed in proteins and nucleic acids, Lee et al. prepared a modified macrocycle (10) which has chiral centers near both termini of the HP rod [46]. The preparation of the chiral macrocycle was implemented like the achiral macrocycles except for employing chiral PEO coils. The authors investigated supramolecular assembly behavior dependent upon chiraUty introduction, using circular dichroism (CD) spectra in the aqueous solution. 

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