Photoactive ROMP Assemblies

ROMP copolymers have been functionalized in order to introduce photosensitive groups with a view to bringing new functionalities. Biological detection with signal amplification has been explored by Sleiman et al. [74] from ROMP copolymers incorporating luminescent and electrochemiluminescent transition-metal-containing monomers, biologically compatible monomers, macromonomers 

ROMP copolymers were also explored to disperse a platinum chromophore in a solvent in which the parent chromophore was insoluble. Slugovc et al. [75] reported the synthesis of amphiphilic triblock random copolymers containing a blue fluorescent host and a red phosphorescent guest. Deep red phosphorescence, stemming from the platinum complex used as guest component, was observed with a large Stokes shift of about 260 nm. Moreover, considerable phosphorescent quantum yields were demonstrated thanks to a suppression of the self-aggregation of the platinum complex. In a further work, the same 

Optoelectronic applications were also targeted with ROMP amphiphilic copolymers synthesized from NBE-substituted oligothiophene amides [78]. An extended conjugated system across the amide bonds linking the thiophene rings was reported, enabling the formation of a new class of micellar chromophores. 

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