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Published July 16, 2003 | public
Journal Article

Direct Synthesis of Soluble, End-Functionalized Polyenes and Polyacetylene Block Copolymers


The ring-opening metathesis polymerization (ROMP) of 1,3,5,7-cyclooctatetraene (COT) in the presence of a chain transfer agent (CTA) with a highly active ruthenium olefin metathesis catalyst resulted in the formation of soluble polyenes. Small molecule CTAs containing an internal olefin and a variety of functional groups resulted in soluble telechelic polyenes with up to 20 double bonds. Use of polymeric CTAs with an olefin terminus resulted in polyacetylene block copolymers. These materials were subjected to a variety of solution and solid phase characterization techniques including ^1H NMR, UV/vis, and FT-IR spectroscopies, as well as MALDI-TOF MS and AFM.

Additional Information

© 2003 American Chemical Society. Received February 20, 2003. Publication Date (Web): June 20, 2003. MALDI-TOF analysis was carried out in a multiuser MS lab funded in part by the MRSEC. The authors thank Dr. Mona Shahgholi for assistance with MALDI analysis of the polyenes, and Dr. Brian Connell, Dr. Stuart J. Cantrill, and Daniel P. Sanders for critical reading of the manuscript. O.A.S. thanks the NSF for a graduate fellowship.

Additional details

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