Crystallization-driven self-assembly (CDSA) has become a powerful method in accessing a wide range of complex nanostructures. The preparation of 2D structures, however, particularly those aimed towards biomedical applications, is limited, with few boasting biocompatible and biodegradable characteristics. Control over two dimensions still remains a key goal in obtaining ultrathin materials with unique chemical, physical and optical properties. We show that CDSA of a range of block copolymers results in the unprecedented formation of large uniform diamond-shaped platelets, up to several microns in size. Investigation into unexpected self-assembly rules has also allowed the preparation of hierarchical novel structures using block copolymer blending. The methods used provide a simple dissolution protocol for the preparation of 2D nanomaterials, with potential applications in drug delivery, tissue engineering, imaging and in nanocomposites.

Using crystallisation driven assembly to prepare 2-dimensional nanomaterials

253rd National Meeting (2017)

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