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(Macromolecules) Amphiphilic Poly(Ethylene Oxide)-block-Poly(Butadiene-graft-Liquid Crystal) Copolymers: Synthesis and Self-Assembly in Water
作者:Yang, H.; Jia, L.; Zhu, C.; Di-Cicco, A.; Levy, D.; Albouy, P.-A.; Li, M.-H.; Keller, P.*
關鍵字:Self-Assembly
論文來源:期刊
具體來源:Macromolecules, 2010, 43, 10442-10451.
發表時間:2010年

What could be the self-assembly behaviour in aqueous solution for an amphiphilic block copolymer with a very flexible hydrophobic backbone possessing however a liquid crystalline (LC) order? To answer this question, five amphiphilic block copolymers were prepared by grafting, via a thiol-ene addition reaction, four different thiol functionnalized LC mesogens or LC-like side groups on two commercially available poly(ethylene oxide)-block-poly(butadiene) (PEO-b-PB) polymers. These copolymers form monodisperse nanospheres in dilute deionized water with the aid of 1,4-dioxane as co-solvent (dioxane-H2O system), while in THF-H2O system, some give heterogeneous polydisperse micelles, and others form large hollow concentric spherical vesicles (“Russian dolls” arrangement). Smectic stripes inside the vesicles and the nanospheres are clearly visualized by cryo-TEM technique.





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