a
b
c
d
Fig. 20 Illustration of morphological behavior of PEP-PEO micelles in aqueous solution: Transition
from (a) cylindrical to compact spherical micelles with increasing overall molecular weight at equal
composition; (b) compact spherical micelles to star-like micelles with increasing PEO and constant
PEP molecular weight; (c) star-like micelles to non-aggregated chains with decreasing γ by addition
of DMF as co-solvent for PEP1-PEO20 block copolymers; (d) cylindrical to spherical micelles to
coexisting spherical micelles/non-aggregated chains by adding DMF for a PEP1-PEO1 polymer
Kinetics of Block Copolymer Micelles Studied by Small-Angle Scattering Methods
115
b
c
d
Fig. 20 Illustration of morphological behavior of PEP-PEO micelles in aqueous solution: Transition
from (a) cylindrical to compact spherical micelles with increasing overall molecular weight at equal
composition; (b) compact spherical micelles to star-like micelles with increasing PEO and constant
PEP molecular weight; (c) star-like micelles to non-aggregated chains with decreasing γ by addition
of DMF as co-solvent for PEP1-PEO20 block copolymers; (d) cylindrical to spherical micelles to
coexisting spherical micelles/non-aggregated chains by adding DMF for a PEP1-PEO1 polymer
Kinetics of Block Copolymer Micelles Studied by Small-Angle Scattering Methods
115