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The Influence of Spatial Distribution of Wedge-Shaped Mesogens Along Polymer Chains on the Self-Assembly of Supramolecular Complexesстатья
Статья опубликована в журнале из списка RSCI Web of Science
Статья опубликована в журнале из перечня ВАКДата последнего поиска статьи во внешних источниках: 15 апреля 2026 г.
- Авторы: Maryasevskaya A.V., Anokhin D.V., Vashurkin D.V., Siaglova E.D., Konyakhina A.Yu, Gur’eva L.L., Ivanov D.A.
- Журнал: Высокомолекулярные соединения. Серия А
- Том: 68
- Номер: 2
- Год издания: 2026
- Издательство: ФГБУ "Издательство "Наука"
- Местоположение издательства: Москва
- Первая страница: 165
- Последняя страница: 173
- DOI: 10.7868/S2412984426020024
- Аннотация: This study demonstrates that the spatial distribution of ionic binding sites along a polyelectrolyte chain critically influences the aggregation of wedge-shaped ligands and the self-assembly of the resulting supramolecular complexes. Regular bilayer structures were observed in complexes formed from poly(4-vinylpyridine) (P4VP) and 2,3,4-tris(dodecyloxy)benzenesulfonic acid at molar ratios (degrees of neutralization) of 1 : 2 and 1 : 4. The resulting interlayer spacing of 3.3–3.9 nm indicate partial in-plane aggregation of ligands, leading to a local increase in the degree of neutralization that suppresses interlayerinterpenetration. In contrast, complexes based on statistical copolymers of 4-vinylpyridine and styrene form smectic structures with reduced layer thickness (3.0–3.6 nm), which is attributed to the diluted distribution of ionic binding sites along the copolymer chain. This distribution inhibits in-plane ligand aggregation and promotes interpenetration of alkyl chains. Differential scanning calorimetry reveals a glasstransition in homopolymer-based complexes, whereas in copolymer-based systems it is observed only atlow degrees of neutralization, reflecting a more uniform mesogen distribution and suppression of α-relaxation.Atomic force microscopy further shows elongated, columnar-like morphologies for homopolymercomplexes, while copolymer complexes exhibit globular structures indicative of enhanced flexibility. These findings highlight that precise control over the density and spatial distribution of ionic units provides an effective strategy for tuning supramolecular self-assembly and designing functional materials with tailored hierarchical architectures.
- Добавил в систему: Иванов Дмитрий Анатольевич