In this talk recent developments concerning a promising “seeded growth” route to well-defined 1D and 2D nano- and microparticles termed “living” crystallization-driven self-assembly (CDSA), will be briefly described. Living CDSA can be regarded as a type of “living supramolecular polymerization” that is analogous to living covalent polymerizations of molecular monomers but on a much longer length scale (typically, 10 nm – 5 microns). Living CDSA also shows analogies to biological “nucleation-elongation” processes such as amyloid fiber growth.<br/><br/>The building blocks or “monomers” used for living CDSA consist of a rapidly expanding range of crystallizable amphiphiles such as block copolymers, homopolymers with charged termini, or planar p-stacking molecules with a wide variety of chemistries. The seeds used as “initiators” for living CDSA are usually prepared from preformed polydisperse 1D or 2D micelles by sonication. In addition, recent results indicate that living CDSA is scalable.<br/><br/>This talk will focus on the preparation and photophysical properties of hybrid materials which exploit the long exciton diffusion lengths in conjugated polymer nanofibers prepared by living CDSA.

Controlled self-assembly of conjugated organic polymeric amphiphiles driven by crystallization: Hybrid functional materials with applications in energy funneling

ACS Fall 2021

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