Thermosensitive dendronized helical polymer and preparation method thereof

The invention discloses a thermo-sensitive dendronized helical polymer and a preparation method thereof, helical conformation of the thermo-sensitive dendronized helical polymer is regulated and controlled by a solvent used in a polymerization reaction, and the structural formula of the thermo-sensitive dendronized helical polymer is shown in the specification, wherein n is equal to 60-300. The preparation method comprises the following steps: grafting two different tree-shaped alkoxy ether units to a side group of phenylacetylene through alanine to obtain two dendronized macromonomers, and homopolymerizing the two monomers in different polar solvents to obtain the polyphenylacetylene derivatives with different temperature-sensitive properties and helical conformations. The existence of the alanine primitive induces a main chain to generate spirals, the tree-shaped alkoxy ether primitive provides different hydrophilic and hydrophobic properties, steric hindrance and hydrogen bond binding sites, and different