Polythiophenes block copolymers

M. C. lovu, C. R. Craley, M. Jeffries-EL, A. B. Krankowski, R. Zhang, T. Kowalewski, R. D. McCullough, Conducting Regioregular Polythiophene Block Copolymer Nanofibrils Synthesized by Reversible Addition Fragmentation Chain Transfer Polymerization (RAFT) and Nitroxide Mediated Polymerization (NMP). Macromolecules 2007,40,4733-4735. 

Francois, B., and T. Olinga. 1993. Polystyrene-polythiophene block copolymers (PS-PT) synthesis, characteri2ation and doping. Synth Met 57 3489-3494. 

Furthermore, the living performance of the chain-growth Suzuki polycondensation was recently illustrated by the synthesis of polyfluorene-polyphenylene and polyfluorene-polythiophene block copolymers via sequential polymerization of two different monomers. 

McCullough and coworkers had synthesized block copolymers of poly(3-hexylthiophene) and polystyrene or PMA by ATRP of the vinyl monomer from a polythiophene macroinitiator, which was prepared in several steps... 

After the development of catalyst-transfer condensation polymerization of polythiophene, the block copolymer of polythiophene and PMA could be prepared more easily. As mentioned above, the vinyl-terminated polythiophene was first prepared. The vinyl group was converted to the 2-hydroxyethyl group by hydroboration, followed by esterification with 2-bromopropionyl bromide to give a macroinitiator for ATRP (Scheme 101)... 

Recently, Dai, Su, and coworkers synthesized the block copolymer of polythiophene and polypyridine from the vinyl-terminated polythiophene (Scheme 102) [336]. Meijer and coworkers used an allyl-terminated polythiophene to synthesize a block copolymer of poly(3-hexylthiophene) and polyethylene the ring-opening metathesis polymerization of cyclooctene in the presence of the allyl-terminated polythiophene was followed by hydrogenation (Scheme 103) [337]. 

Stokes, K.K., Henze, K., and McCullough, R.D., New phosphonic acid functionalized, regioregular polythiophenes. Macromolecules 36, 7114—7118, 2003. lovu, M.C. et al., Regioregular poly(3-alkylthiophene) conducting block copolymers, Polymer 46, 8582-8586, 2005. 

R. Verduzco, I. Botiz, D. L. Pickel, S. M. Kilbey, K. Hong, E. Dimasi, S. B. Darling, Polythiophene-BZocfc-Polyfluorene and Polythiophene-B/ocfc-Poly(Fluorene-co-Benzothiadiazole) Insights into the Self-Assembly of All-Conjugated Block Copolymers. Macromolecules 2011,44, 530-539. 

T. Antoun, A. Iraqi, L. Kergoat, L. Miozzo, A. Yassar, A Simple Route to Rod-Coil Block Copolymers of Oligo- and Polythiophenes with PMMA and Polystyrene. Macromol. Chem. Phys. 2011,212,1129-1136. 

The recently developed living polymerization in polycondensation is reviewed by Yokozawa T, Yokoyama A (2004) Chain-growth Poly condensation Living Polymerization Nature in Polycondensation and Approach to Condensation Polymer Architecture. Polymer J (Japan) 36 65-83 (in English). Examples are found for polyamides (2000) JAmChemSoc 122 8313-2314. Polyesters (2003) Macromolecules 36 4328 336. Polyethers (2001) J Am Chem Soc 123 9902-9903. Polythiophenes (2004) Macromolecules 37 1169-1171. Several block copolymers can be found in the publications (2002) J Am Chem Soc 124 15158-15159 and (2003) J Polymer Sci, Part A Polymer Chem 41 1341-1346. 

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