A. Reisman, M. Berkenblit, et al.
JES
ABA-type oligocarbonate-fluorene end-functionalized poly(ethylene glycol) s form micelles with star-like correlations in dilute solutions where water solvates the middle (B) poly(ethylene oxide) block. Using small-angle neutron scattering (SANS), the star-arm aggregation number and arm radius of gyration were characterized by Benoit's star-polymer form factor under θ-solvent conditions and by Alessandrini and Cargnano's renormalization group theory in good solvent. Model-independent SANS Zimm plots provide the radius of gyration, micelle aggregation number, and second virial coefficient (A2) as a function of temperature. In comparison to unfunctionalized poly(ethylene glycol) A2 is consistent with predictions for self-assembling polymers below the gelation point with a theta temperature of ≈ 75 °C.
A. Reisman, M. Berkenblit, et al.
JES
K.A. Chao
Physical Review B
B.A. Hutchins, T.N. Rhodin, et al.
Surface Science
U. Wieser, U. Kunze, et al.
Physica E: Low-Dimensional Systems and Nanostructures