Supramolecular polymerization has recently attracted particular attention for the development of well-defined functional architectures. While the thermodynamics of supramolecular polymerizations were studied in detail by mathematical models, deep knowledge on the kinetics of aggregation processes is still lacking. The understanding of both, the thermodynamics and kinetics of supramolecular polymerizations, is important because it may enable the precise control of the structure and function of supramolecular polymers. Perylene bisimide (PBI) dyes are suitable to study these phenomena since they possess favorable aggregation behaviors and outstanding optical properties. Recently, the kinetics of self-assembly processes of PBI derivatives have been studied by seeded supramolecular polymerization. In the present work we achieved the kinetic control on the aggregation behavior of chiral (S,S)-PBI-C2* and studied the influence of external stimuli (e.g. ultrasonication) by IR, UV/Vis and CD spectroscopy as well as AFM (Figure 1).

Kinetic control of supramolecular polymerization by ultrasonication

253rd National Meeting (2017)

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