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- Title
Parallel Synthesis of Photoluminescent π-Conjugated Polymers by Polymer Reactions of an Organotitanium Polymer with a Titanacyclopentadiene Unit.
- Authors
Matsumura, Yoshimasa; Fukuda, Katsura; Inagi, Shinsuke; Tomita, Ikuyoshi
- Abstract
A regioregular organometallic polymer with titanacyclopentadiene unit, obtained by the reaction of a 2,7-diethynylfluorene derivative and a low-valent titanium complex, is subjected to the reaction with three kinds of electrophiles (i.e., sulfur monochloride, hydrochloric acid, and dichlorophenylphosphine) to give π−conjugated polymers possessing both fluorene and building blocks originated from the transformation of the titanacycles in the main chain. For example, a phosphole-containing polymer whose number-average molecular weight is estimated as 5000 is obtained in 50% yield. The obtained thiophene, butadiene, and phosphole-containing polymers exhibit efficient photoluminescence (PL) with emission colors of blue, green, and yellow, respectively. For example, the phosphole-containing polymer exhibits yellow PL with an emission maximum ( Emax) of 533 nm and a quantum yield ( Φ) of 0.37.
- Subjects
CONJUGATED polymers synthesis; PHOTOLUMINESCENT polymers; ORGANOTITANIUM compounds; CYCLOPENTADIENE derivatives; ORGANOMETALLIC polymers
- Publication
Macromolecular Rapid Communications, 2015, Vol 36, Issue 7, p660
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.201400667