Hybrid Polymeric Micelles with Hydrophobic Cores and Mixed Polyelectrolyte/Nonelectrolyte Shells in Aqueous Media. 2. Studies of the Shell Behavior†
作者： Klára Podhájecká , Miroslav Štěpánek , Karel Procházka , Wyn Brown
DOI: 10.1021/LA010247P
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摘要: The behavior of mixed poly(methacrylic acid)/poly(ethylene oxide) (PMA/PEO) shells hybrid polymeric micelles with polystyrene cores was studied in detail by a combination light scattering, fluorometric, potentiometric, and other techniques. results show that the dissociation acid) inner layer close to core is suppressed, part because relatively low polarity medium high concentration carboxylic groups. degree does not correspond bulk pH. PMA chains form hydrogen-bond-stabilized interpolymer complex PEO shell. compact PMA−PEO around very stable resistant changes solvent properties. Potentiometric titration shows an important fraction PMA, which engaged formation, cannot be neutralized even considerable excess base. peripheral formed pre...
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