Chain-Growth Suzuki Polycondensation

Examples of X-pF8-Y synthesized by chain-growth Suzuki polycondensation... 

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. 

We will start this chapter with a brief review of the origin of the donor-acceptor concept, followed by a short summary of the key chemistries that are used for the synthesis of D-A copolymers e.g., Suzuki coupling and Stille coupling), with a focus on their application towards the polymer synthesis. The classical step-growth polymerization will be next discussed within the context of Pd-catalyzed polycondensation. Then we will briefly discuss two recent, interesting advances in the synthesis of D-A copolymers Pd-free polycondensation and chain-growth Suzuki polymerization. Since the synthesis of D-A... 

T. Yokozawa, T. Taniguchi, Y. Suzuki, and A. Yokoyama. Chain-growth polycondensation of monomer consisting of two aromatic rings Synthesis of well-defined poly(ether sulfone) from 4-fluoro-4 -hydroxydiphenyl sulf-one. J. Polym. ScL, Part A Polym. Chem., 40 3460-3464, 2002. 

Suzuki Y, Hiraoka S, Yokoyama A, Yokozawa T. Chain-growth polycondensation of potassium 3-cyano-4-fluorophenolate derivatives for well-defined polyfarylene etherjs. Macromol Symp 2003 199 37-46. 

Suzuki and co-workers [83] used MALDI-ToF-MS to study the solvent effect on chain growth polycondensation for aromatic polyether. 

An important conclusion reached in the work of Suzuki and co-workers [83] is that by using initiators chain growth polycondensation polymers can control the topology of condensation polymers obtained by conventional polycondensation, that is, chain growth polycondensation yields only linear polymers, whereas conventional polycondensation yields linear and cyclic polymers. 

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