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Complexing P2VP and P2VP‑b‑PEO with Wedge-Shaped Amphiphilesстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: de Jeu Wim H., Tommi Markkula, Krystyna Albrecht, Ivanov Dimitri A., Martin Moeller, Ahmed Mourran
- Журнал: Macromolecules
- Год издания: 2017
- Издательство: American Chemical Society
- Местоположение издательства: United States
- DOI: 10.1021/acs.macromol.7b00720
- Аннотация: We report on the structure of a system of wedgeshaped molecules with a sulfonic end group incorporated into the both the homopolymer P2VP and the block copolymer P2VP-b-PEO, at degrees of complexing of 25%, 50%, and 100%. From Xray scattering in the bulk all three homopolymer complexes reveal a lamellar phase, which is, however, for 100% mixed with a hexagonal phase. In agreement with earlier work on thin films, the corresponding block copolymers show all a structure of PEO cylinders perpendicular to lamellae of the ligands. Between 25% and 50% neutralization the packing changes from relatively loose layers consisting of several backbone chains with ligands for 25% to a situation of single backbones with highly stretched ligands for higher degrees of neutralization. In the latter cases crystallization of the confined PEO blocks is strongly reduced.
- Добавил в систему: Иванов Дмитрий Анатольевич