Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/103451
Title: Synthesis of donor-acceptor conjugated polymers based on benzo[1,2-b:4,5-b′]dithiophene and 2,1,3-benzothiadiazole via direct arylation polycondensation : towards efficient C-H activation in nonpolar solvents
Authors: Wang, Xiaochen
Wang, Mingfeng
Keywords: DRNTU::Science::Chemistry::Organic chemistry::Polymers
Issue Date: 2014
Source: Wang, X., & Wang, M. (2014). Synthesis of donor-acceptor conjugated polymers based on benzo[1,2-b:4,5-b′]dithiophene and 2,1,3-benzothiadiazole via direct arylation polycondensation : towards efficient C-H activation in nonpolar solvents. Polymer chemistry, 5(19), 5784-5792.
Series/Report no.: Polymer chemistry
Abstract: This article describes the synthesis of donor–acceptor (D–A) type copolymers based on benzo[1,2-b:4,5-b′]dithiophene and 2,1,3-benzothiadiazole via direct-arylation cross-coupling polycondensation. To achieve high performance polymerization, we have systematically investigated the reaction factors including catalysts, solvents, ligands, bases, additives, concentration of reactants and phase transfer agents. In particular, 1,2-dimethylbenzene (ODMB), as a nonpolar high boiling point solvent, is a superior medium to perform this direct-arylation polymerization. In this nonpolar aromatic solvent, Pd2dba3/(o-MeOPh)3P, accompanied with a base potassium carbonate and an additive pivalic acid, serves as an efficient catalyst system to obtain high-quality polymers. Our optimized condition gave the polymer with a weight-average molecular weight (Mw) as high as 60 kg mol−1 in nearly quantitative yield and excellent C–H selectivity.
URI: https://hdl.handle.net/10356/103451
http://hdl.handle.net/10220/24513
DOI: http://dx.doi.org/10.1039/C4PY00565A
Rights: This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
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metadata.item.fulltext: With Fulltext
Appears in Collections:SCBE Journal Articles

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