On the polymerization of acetylenic derivatives—XXXIV: Polymerization of 9-ethynylanthracene and structure of the polymers

✍ Scribed by S. Dumitrescu; M. Grigoras; C.I. Simionescu

• Book ID: 103076081
• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 379 KB
• Volume: 19
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(83)90009-5

✦ Synopsis

Almtract--The polymerization of 9-ethynylanthracene was carried out using Ziegler-Natta catalysts: AIEt3-M(acac)x and AIEt 3 Fe(dmg)2.2Py, where M = VO n, Co u1 and Fe m, acac---acetylacetonate, drag = dimethylglyoxime and Py = pyridine. In these case, polymers with polyene structure are obtained. The u.v. hypochromism of this polymer, compared with 9-vinylanthracene, might be attributed to electronic interactions between anthryl groups in a helical cis cisoidal structure, with three monomer units located in the helix. Thermal analysis gives additional evidence supporting the cis structure.