The Effect of Hydrophile Topology in RAFT-Mediated Polymerization-Induced Self-Assembly.

Autor:	Lesage de la Haye, Jennifer, Zhang, Xuewei, Chaduc, Isabelle, Brunel, Fabrice, Lansalot, Muriel, D'Agosto, Franck
Předmět:	POLYMERIZATION MOLECULAR self-assembly AMPHIPHILES BLOCK copolymers HYDROPHILIC compounds STYRENE HYDROPHOBIC interactions
Zdroj:	Angewandte Chemie; 3/7/2016, Vol. 128 Issue 11, p3803-3807, 5p
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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