Abstract
We report the unusual aqueous (micro)phase separation of binary mixtures of two biocompatible, hydrophilic homopolymers and the corresponding double-hydrophilic diblock copolymers of poly(ethylene oxide) (PEO) and poly[2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC). SAXS analysis of these double hydrophilic block copolymers in concentrated aqueous solution shows highly hydrated nano-structures and a hydration mechanism is proposed based on these data.
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