Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 46, 2016
Previous Article Next Article

Transition-metal-free controlled polymerization of 2-polyfluorophenyl-5-trimethylsilylthiophenes: the substituent impact of fluorine

Author affiliations

Abstract

The design and synthesis of asymmetric AB-type monomers, 2-polyfluorophenyl-5-trimethylsilylthiophenes, and the transition-metal-free polymerization promoted by fluoride anions are described. The polymerization depended on the substitution position and also the number of fluorines on the phenyl groups; i.e., a 3,4,5-trifluorophenyl-substituted monomer proceeded the polymerization by a catalytic amount of potassium t-butoxide in the presence of cryptand[2.2.2] with controlled molecular weights and relatively low polydispersity indexes, but 2,4,6- and 2,3,4-trifluoro-substituted and also 3,4-difluoro-substituted monomers did not. The NMR spectra of the resulting polymers were consistent with a highly regulated structure for the polymer main chain, indicating that the polymerization process itself must be highly regioselective under these conditions. By using the polymerization, end-capping and block copolymerization with high fidelity were also demonstrated.

Graphical abstract: Transition-metal-free controlled polymerization of 2-polyfluorophenyl-5-trimethylsilylthiophenes: the substituent impact of fluorine

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 Oct 2016, accepted on 30 Oct 2016 and first published on 08 Nov 2016


Article type: Paper
DOI: 10.1039/C6PY01831A
Citation: Polym. Chem., 2016,7, 7116-7125

  •   Request permissions

    Transition-metal-free controlled polymerization of 2-polyfluorophenyl-5-trimethylsilylthiophenes: the substituent impact of fluorine

    T. Sanji, K. Nose, J. Kakinuma and T. Iyoda, Polym. Chem., 2016, 7, 7116
    DOI: 10.1039/C6PY01831A

Search articles by author

Spotlight

Advertisements