The Polyrotaxane Gel: A Topological Gel by Figure-of-Eight Cross-links

作者：Yasushi Okumura, Kohzo Ito · 发表于：Advanced Materials · 年份：2001 · DOI：10.1002/1521-4095(200104)13:7<485::aid-adma485>3.0.co;2-t · 被引用次数：1846 · 研究领域：Supramolecular Chemistry and Complexes、Supramolecular Self-Assembly in Materials、Porphyrin and Phthalocyanine Chemistry

Supramolecules with topological characteristicshave attracted great interest both experimentally and theoretically. A new kind of gel has been obtained by chemically cross-linking polyrotaxane molecules in solution. The polymer chains are topologically interlocked by figure-of-eight cross-links (see Figure), which can pass along the polymer chains freely to equalize the “tension” of the threaded polymer chains just like pulleys.