Topochemical Polymerization Using Self-Assembled Scaffolds

Topochemical Polymerization Using Self-Assembled Scaffolds 

These examples serve to highlight that supramolecular self-assembly and topo-chemical diacetylene polymerizations are a perfect match. Topochemical diacetylene polymerizations are an advantageous means of covalent capture for the reasons outlined above. The required order may, on the other hand, be provided by supramolecular self-assembly, which extends the scope beyond singlecrystalline monomers. This aspect becomes particularly important in the case of functional monomers in order to address specific applications. However, in contrast to previous investigations, the targeted preparation of hierarchically structured poly (diace tylene)s with a defined, finite number of strands required the presence of equally well-defined, uniform supramolecular polymers [106] with the propensity to form predictable superstructures, instead of micellar or vesicular ID aggregates. 

Self-Assembly of P-Sheet Forming Oligopeptides and Their Polymer Conjugates 

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Topochemical Polymerization Using Self-Assembled Scaffolds... 

Polymerization of self-assembled LMOG molecules within the fibers of a molecular gel locks the scaffold-like structures and can make new stable materials [99,100]. Photopolymerization in the gels of diacetylenic cholesteryl derivatives, such as 63X-n [88,89], has been successfully employed to access organic nanowires with potential electrical conductivity, which could be used in molecular electronics. This strategy was based on the known propensity of diacetylenes to undergo topochemical soUd-state 1,4-addition reactions leading to conjugated polymers [101]. 

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