Synthesis And Characterization Of Triphenylene Star Block Polymers

Dendrimers are a kind of molecular structure with a strong ability of self-assembled, it not only can form a variety of liquid crystal structure in ontology state but also in solution form a strong sense of self-assembly ability due to large and complex van der Waals interactions. Dendrimers with a long alkyl chain are also a good kind of gel, it is often used to prepare the gel with functional properties.Disk-shaped molecules and dendrimers can be easily piled into the plane, it is easy to form a stacking structure erpendicular to the substrate. On the one hand dendrimers reduces the accumulation of discoid molecular stabilization energies through the synergy system, on the other hand dendrimers structure has been further stability through its own gelation the self-assembled. Therefore, dendrimers has important research value for the preparation of one-dimensional carrier transport channel.In this paper we synthesized a novel star polymers with the core of triphenylene, polyethylene for the arm chains and then discoid triphenylene molecule coupled with dendrimers by using click chemistry method, we got triphenylene star block polymers in the last. The synthesis and characterization of novel kind of triphenylene block copolymer wih polyethylene-b-polylactide acting as arm chains were presented. The hydrogen bonds are introduced into the triphenylene derivatives, which will be helpful to form regular self-assembly morphology. We built a super-molecular structure of triphenylene by adjusting the molecular structure parameters and processing conditions and expand the application space of triphenylene discoid molecules in the thin-film sensors and other related fields.