One-Pot in Situ Fabrication of Stable Nanocaterpillars Directly from Polyacetylene Diblock Copolymers Synthesized by Mild Ring-Opening Metathesis Polymerization

详细信息    查看全文

• 作者：Ki-Young Yoon ; In-Hwan Lee ; Kyung Oh Kim ; Jihoon Jang ; Eunji Lee ; Tae-Lim Choi
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：September 5, 2012
• 年：2012
• 卷：134
• 期：35
• 页码：14291-14294
• 全文大小：303K
• 年卷期：v.134,no.35(September 5, 2012)
• ISSN：1520-5126

文摘

We report a direct one-pot route for the preparation of supramolecules from simple polyacetylene diblock copolymers synthesized by mild ring-opening metathesis polymerization of cyclooctatetraene. This in situ nanoparticlization of conjugated polymer (INCP) approach is advantageous over conventional self-assembly processes because this method does not require any tedious postsynthetic treatments. Also, this direct approach provides intriguing supramolecules with a unique nanostructure resembling a caterpillar. Furthermore, the new supramolecules are highly stable adducts because the polyacetylene core block provides an exceptionally strong driving force for the self-assembly. Even though pristine polyacetylene is unstable in air, the polyacetylene segment in the nanocaterpillar is very stable because it is protected within the shell of the supramolecule.