Influence of solvent on micellar morphologies of semifluorinated block copolymers.
The influence of solvents on micellar architectures of block copolymers composed of poly(1H,1H-dihydroperfluorooctyl methacrylate) and poly(ethylene oxide) was investigated. In this study, binary solvents with desired proportions were chosen, which had remarkable influence on the morphology of the resulting micelles. With simple adjusting the composition of the binary solvent of chloroform and trichlorofluoromethane, interesting shapes of micelle-like aggregates, such as core-shell, cylinder, worm-like and inverted micelles were formed with sizes of 15, 70, 30 and 250 nm, respectively. In the case of methanol/water system, core-shell spheres and vesicles were produced by varying the proportion of the contents. The morphologies were also tuned to honeycomb-like and bowl-shaped micelles as well as large planar lamellae with holes in DMF and water binary solvent.
Lee
Min Young
MY
Department of Image System Engineering, Pukyong National University, Busan 608-739, Korea.
Kim
Sang Jae
SJ
Jeong
Yeon Tae
YT
Kim
Joo Hyun
JH
Gal
Yeong-Soon
YS
Lim
Kwon Taek
KT