Polyion micelles with diphase-segregated core: electrostatic self-assembly of poly(ethylene glycol)-block-poly (4-vinylpyridium) and tetrakis (4-sulfonatophenyl) porphyrin in solution

摘要

The polyion micelles were prepared with poly (ethylene glycol)-block-poly(4-vinylpyridium) (PEG_(114)-b-P (4-VPH+)_(35)) and tetrakis (4-sulfonatophenyl) porphyrin (TPPS) in acid aqueous solution. Micellization was investigated by using a combination of static and dynamic laser scattering. UV-Vis spectroscopy revealed that the H- and J-type aggregates of TPPS were formed in the micellar core. Transmission electron microscopy studies of the polyion micelles show that the obtained polyion micelles take a diphase-segregated core, the polymer phase and the incompatible TPPS aggregates phase.