Microwave-assisted McMurry polymerization utilizing low-valent titanium for the synthesis of poly 2,6-[1,5-bis(dodecyloxy)naphthylene vinylene] (PNV)

作者:Thomas Henrik; Stuhr Hansen Nicolai*; Westerlund Fredrik; Laursen Bo W; Magnussen Magnus; Sorensen Henning O; Bjornholm Thomas; Christensen Jorn B
来源:Tetrahedron Letters, 2009, 50(52): 7374-7378.
DOI:10.1016/j.tetlet.2009.10.083

摘要

Poly 2,6-[1,5-bis(dodecyloxy)naphthylene vinylene] is synthesized by microwave-assisted McMurry polymerization utilizing low-valent titanium generated from titanium tetrachloride and zinc. The obtained polymer is fluorescent with an average molecular weight of approximately 65,000 g/mol and a polydispersity of M(w)/M(n) approximate to 3. Absorption and fluorescence spectroscopy in solution and on spin-cast thin films reveal that the bis-alkoxy substituted PNV has a short effective conjugation length but a quite efficient exciton migration.

  • 出版日期2009-12-30