Polymerisation-induced self-assembly (PISA) has been heralded as a facile method to obtain block copolymer aggreates with defined morphologies. However, the transitions between these morphologies have been difficult to monitor directly during the polymerisation. Herein, we describe a straightforward <i>in situ</i> method to monitor the evolution of nanostructure and internal hydrophobicity during the PISA process using a pyrene fluorescent probe. We were able to correlate morphological transitions with changes of the pyrene emission and gain unprecedented insight into the evolution of core hydrophobicity during PISA.

<i>In situ</i> monitoring of PISA morphologies

ACS Fall 2020 Virtual Meeting

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In situ monitoring of PISA morphologies