Chiral polymeric micelles from electrostatic assembly between achiral Porphyrins and block copolymers

摘要

A chiral polymeric micelle is described, formed from the self-assembly of TPPS and PEG(114)-b-P(4VP)(38) in aqueous media based on their electrostatic interaction. The self-assembly behavior is studied by DLS, SLS, TEM, UV-vis absorption spectroscopy, and CD spectroscopy. The experimental results indicate that the resultant hybrid spherical micelles with a hybrid P(4VP)/TPPS core and a PEG shell show chiral signatures. In addition the chiral micelles have a large dimension and biphasic segregated structure because of the formation of H-aggregates and J-aggregates in the micellar core.