Complexes Covered with Phosphorylcholine Groups Prepared by Mixing Anionic Diblock Copolymers and Cationic Surfactants

Anionic diblock copolymers (PmAn) composed of biocompatible polybetaine, poly(2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC), and anionic poly(sodium 2-(acrylamido)-2-methylpropanesulfonate) (PAMPS) were synthesized via reversible addition-fragmentation chain transfer (RAFT) radical polymerizati...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 33(2017), 21 vom: 30. Mai, Seite 5236-5244
1. Verfasser: Nakai, Keita (VerfasserIn)
Weitere Verfasser: Ishihara, Kazuhiko, Yusa, Shin-Ichi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a Anionic diblock copolymers (PmAn) composed of biocompatible polybetaine, poly(2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC), and anionic poly(sodium 2-(acrylamido)-2-methylpropanesulfonate) (PAMPS) were synthesized via reversible addition-fragmentation chain transfer (RAFT) radical polymerization. Two types of diblock copolymers (P24A217 and P100A99) were prepared with different compositions. The PmAn/CTAB complexes were formed by a stoichiometrically charge-neutralized mixture of anionic PmAn and cationic cetyltrimethylammonium bromide (CTAB) micelles in water. The complexes prepared using P24A217 and P100A99 were vesicles and micelles, respectively, and were covered with hydrophilic PMPC shells. The complexes dissociated upon addition of NaCl because the complex was maintained through electrostatic interactions. The P24A217/CTAB vesicles could encapsulate uncharged hydrophilic guest molecules into the interior of the aqueous phase 
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700 1 |a Yusa, Shin-Ichi  |e verfasserin  |4 aut 
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