Abstract
A polyisoprene-block-poly(2-cinnamoylethyl methacrylate)-block-poly(tert-butyl acrylate), PI-b-PCEMA-b-PtBA, sample with 3.7 × 102 units of isoprene, 4.2 × 102 units of CEMA, and 5.5 × 102 units of tBA was synthesized. The triblock formed spherical micelles with a PtBA corona, PCEMA shell, and PI core in THF/methanol with methanol volume fractions between 50% and 99%. After micellar structure “locking in” by UV cross-linking of PCEMA, the PI block of the triblock was degraded by ozonolysis to yield nanospheres with a central cavity. The cavities were loaded with rhodamine B, a compound with size similar to those of many drug compounds.
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