Synthesis of Block Terpolymer PS-PDMAEMA-PMMA via ATRP and Its Self-assembly in Selective Solvents

摘要

Well-defined triblock terpolymer polystyrene-block-poly(N,N-Dimethylaminoethyl methacrylate)-block-poly(methyl methacrylate) (PS-PDMAEMA-PMMA) is synthesized via sequential Atom transfer radical polymerization (ATRP) with designed molecular weights characterized by HNMR and GPC. Annealing in Chloroform which is a selective solvent for PS and PMMA induces the formation of micelles with patchy coronas, and subsequent dialysis against cyclohexane which is selective only for PS enables the stacking of the precursor micelles into core-compartmentalized self-assemblies. The micellizatinon and self-assembly behaviors are investigated via DLS and TEM.