If a block-copolymer of styrene and ethylene oxide is mixed with a solvent which exhibits preferential affinity for the polystyrene block, birefringent gels are obtained. The structure of these gels is lamellar and the layers of unsolvated polyethyleneoxide are crystalline. In the present work, the
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Configuration des Chaǐnes Macromoléculaires des Copolymères Sequences en Solution Concentree. Exemple des Copolymères Séquencés Polystyrolène-Polyoxyéthyléne et Polyoxypropylène-Polyoxyéthylène en Solution dans des Solvants Préférentiels de l'une ou l'aut
✍ Scribed by Skoulios, A. E. ;Tsouladze, G. ;Franta, E.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2007
- Weight
- 701 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0449-2994
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## Abstract We have prepared a series of three‐block copolymers containing the same central block of poly(ethylene oxide) (POE) and two side blocks poly(γ‐L‐glutamate) (PBLG) of variable lengths. These molecules could present an unusual conformational model when dissolved in solvents where PBLG exh