Polyfluorenes chain-growth

A. E. Javier, S. R. Varshney, R. D. McCullough, Chain-Growth Synthesis of Polyfluorenes with Low Polydispersities, Block Copolymers of Fluorene, and End-Capped Polyfluorenes Toward New Optoelectronic Materials. Macromolecules 2010,43,3233-3237. 

Chain-growth catalyst-transfer polycondensation (CTP) is a rapidly developing polymerization method, as it allows, in many cases, the above-mentioned limitations of step-growth polymerizations to be overcome. CTP provides a straightforward access to well-defined conjugated homopolymers (e.g., polythiophenes (1), polyfluorenes (2), polyphenylenes (3), etc.), alternate donor-acceptor copolymer e.g., 4) and all-conjugated block polymers (e.g., 5), Chart 20.1. 

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. 

Huang L, Wu S, Qu Y, Geng Y, Wang F. Grignard metathesis chain-growth polymerization for polyfluorenes. Macromolecules 2008 41 8944-8947. 

Javier AE, Varshney SR, McCullough RD (2010) Chain-growth synthesis of polyfluorenes with low polydispersities, block copolymers of fluorene, and end-capped polyfluorenes toward new optoelectronic materials. Macromolecules 43 3233-3237... 

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