Nanomaterials - 05

Abstract

As a new way to modify and precisely tune the functions of alkyl π-liquids[1] with rich optoelectronic functionalities, we propose a novel method to blend multiple alkyl π-liquids homogeneously. The proposed method envisages blending two or more molecular alkyl π-liquids exhibiting low volatility and high thermal stability. The miscibility of the liquids is a critical factor in ensuring a uniform mixture.[2]
Our previous research demonstrated the successful creation of homogeneous blends of hydrophobic alkyl-π liquids through rheological analysis and luminescent color tuning. This study extended our work by substituting the hydrophobic branched alkyl chains with hydrophilic branched triethylene glycol (TEG) chains based on identical chromophores (Fig. 1). For example, π-liquids incorporating TEG chains gave phase-separated liquids immiscible with hydrophobic alkyl-π liquids. Our findings provide new insights into the behavior of these systems, notably the transition from miscible to phase-separated immiscible blends. This study will further explore these innovative liquid blendings' varying degrees of miscibility and their resulting properties.