A series of novel hyperbranched polymers BF2-HP(1-4) containing difluoroboron-diketonate complexes and truxene units have been synthesized. To achieve the target polymers, the precursors Boc-HP(1-4) were obtained through the Pd (0)-catalyzed Suzuki polymerization with an "A(2) + B-3" or "A(2) + B-2 + B-3" approach in different molar ratios. After the deprotection of Boc-groups, the reaction with BF3 gave the polymers BF2-HP(1-4). The new BF2 containing polymers exhibited red-shifts in their UV-vis absorption and emission compared with their uncomplexed counterparts. The tunable hyperbranched architectures of BF2-HP(1-4) resulted in diverse optical properties. With the decrease of linear units in BF2-HP(1-4), the emission peaks in chloroform solution presented a significant blue-shift, whereas a red shift was noted in films. Notably, the hyperbranched architectures could suppress the aggregation more effectively than the linear architectures not only in poor solvents such as DMF but also in the film states. In addition, these polymers showed high thermal stability, and good solubility in common organic solvents. (C) 2016 Elsevier Ltd. All rights reserved.
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