Publication details
Poly(pseudo)rotaxane based on Cucurbit[7]uril
| Authors | |
|---|---|
| Year of publication | 2005 |
| Type | Article in Periodical |
| Magazine / Source | Polymer Preprints |
| MU Faculty or unit | |
| Citation | |
| Field | Macromolecular chemistry |
| Keywords | polyimides;cucurbiturils |
| Description | A novel poly(pseudo)rotaxane contg. cucurbit[7]uril (CB7) is synthesized by threading cuburibit[7]uril onto the linear conducting polymer poly(phenylene vinylene)(PPV). The poly(pseudo)rotaxane exhibits different electro-optical properties than the free polymer. CB7 was found to form tight stable complexes with bis(sulfonium)monomers for PPV prepn. But this complex did not undergo polymn. CB7, however, threaded easily onto the polyelectrolyte chain and favored the formation of trans-stilbene groups on the chains. This study shows that CB7 can facilitate (catalyzes) the thermal formation of extended conjugate structures on the polymer chains. The interior cavity of CB7 possesses Lewis basicity which illustrates an interesting and unprecedented supermol. catalytic effect. |