| United States Patent | 5,270,394 |
| Hoxmeier | Dec. 14, 1993 |
| Inventors: | Hoxmeier; Ronald J. (Houston, TX). |
| Assignee: | Shell Oil Company (Houston, TX). |
| Appl. No.: | 956,184 |
| Filed: | Oct. 5, 1992 |
| Intl. Cl.: | C08F 297/04; |
| U.S. Cl.: | 525/232.; 525/314.; |
| Field of Search: | 63;314;232;332.5;333.3;333.2 |
| 4,014,844 | Mar., 1977 | Vidal et al. | 524/560 |
| 4,849,481 | Jul., 1989 | Rhodes et al. | 525/314 |
| 5,177,248 | Jan., 1993 | Chiang et al. | 560/ 86 |
| 92/04279 | Mar., 1992 | WOX |
Fagan, Paul "Synthesis, Chemistry and Properties of a Monoalkylated Buckminsterfullerene Derivative, t-BuC(60) Anion" J. Am. Chem. Soc. 1992, 114, 9697-99.
Wudl, Fred "Chemical Properties of Buckminsterfullerene . . . " Acc. Chem. Res. 1992, 25, 157-161.
C(60) : From Soot to Superconductors, Angew. Chem. Int. Ed. Engl. 30 (1991) No. 6.
Diamagnetic Polyanions of the C(60) and C(70) Fullerenes: Preparation, (^13) C and Li NMR Spectroscopic Observation, and Alkylation with Methyl Iodide to Polymethylated Fullerenes, J. Am. Chem. Soc. 1991, 113, 3205-3206.
Chlorination and Bromination of Fullerenes. Nucleophilic Methoxylation of Polychlorofullerenes and Their Aluminum Trichloride Catalyzed Friedel-Crafts Reaction . . . , J. Am. Chem. Soc. vol. 113, No. 24, 1991.
A process is described for producing a coupled polymer by anionically polymerizing monomers selected from the group consisting of a vinyl aromatic hydrocarbon, a conjugated diene or both with an organo alkali metal compound to produce living polymer arms which are then contacted with a fullerene which reacts with the living polymer arms to form a coupled polymer. The coupled polymer has a novel composition and novel characteristics.