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Chlo Grazon Pedro Salas‐Ambrosio Emmanuel Ibarboure Alix Buol Elisabeth Garanger Mark W. Grinstaff Sbastien Lecommandoux Colin Bonduelle 《Angewandte Chemie (International ed. in English)》2020,59(2):622-626
Reported here is the first aqueous ring‐opening polymerization (ROP) of N‐carboxyanhydrides (NCAs) using α‐amino‐poly(ethylene oxide) as a macroinitiator to protect the NCA monomers from hydrolysis through spontaneous in situ self‐assembly (ISA). This ROPISA process affords well‐defined amphiphilic diblock copolymers that simultaneously form original needle‐like nanoparticles. 相似文献
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Dr. Jennifer Lesage de la Haye Dr. Xuewei Zhang Dr. Isabelle Chaduc Dr. Fabrice Brunel Dr. Muriel Lansalot Dr. Franck D'Agosto 《Angewandte Chemie (International ed. in English)》2016,55(11):3739-3743
Polymerization‐induced self‐assembly (PISA) was employed to compare the self‐assembly of different amphiphilic block copolymers. They were obtained by emulsion polymerization of styrene in water using hydrophilic poly(N‐acryloylmorpholine) (PNAM)‐based macromolecular RAFT agents with different structures. An average of three poly (ethylene glycol acrylate) (PEGA) units were introduced either at the beginning, statistically, or at the end of a PNAM backbone, resulting in formation of nanometric vesicles and spheres from the two former macroRAFT architectures, and large vesicles from the latter. Compared to the spheres obtained with a pure PNAM macroRAFT agent, composite macroRAFT architectures promoted a dramatic morphological change. The change was induced by the presence of PEGA hydrophilic side‐chains close to the hydrophobic polystyrene segment. 相似文献
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Dong‐Je Hong Eunji Lee Haemi Jeong Jeong‐kyu Lee Wang‐Cheol Zin Trung Dac Nguyen Sharon C. Glotzer Myongsoo Lee Prof. 《Angewandte Chemie (International ed. in English)》2009,48(9):1511-1511
Solid scrolls are reversibly formed by self‐assembly of rod‐shaped molecules with laterally attached coil units, in contrast to the layered structures formed from self‐assembly of planar molecules. As described by M. Lee and co‐workers in their Communication on page 1664 ff., the core structure of the scrolls, which are either filled cylinders or hollow tubes, can be controlled by variation of the length of the coil unit. The cover picture shows aligned tubular scrolls displaying well‐defined in‐plane ordering of the rod segments.
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