Dithienosilole-Based All-Conjugated Block Copolymers Synthesized by a Combination of Quasi-Living Kumada and Negishi Catalyst-Transfer Polycondensations.
Herein, we present a quasi-living Negishi-type catalyst-transfer polycondensation of a zinc–organic DTS-based monomer which provides an access to narrowly distributed poly(4,4-bis(2-ethylhexyl)dithieno3,2-b:2′,3′-dsilole (PDTS) with controlled molecular weight. The synthesis of well-defined all-conjugated diblock copolymers containing a PDTS block was accomplished by a combination of Kumada and Negishi catalyst-transfer polycondensations (KCTP and NCTP, respectively). Particularly, it was shown that living P3HT chains obtained by KCTP of magnesium–organic thiophene-based monomer efficiently initiate NCTP of zinc–organic DTS-based monomer. The purity of the DTS-based monomer was found to be a crucial factor for achieving a clean chain-growth polymerization process. A combination of physico-chemical methods was used to prove the success of the block copolymerization.
%0 Journal Article
%1 C4PY00747F
%A Erdmann, T.
%A Back, J.
%A Tkachov, R.
%A Ruff, A.
%A Voit, B.
%A Ludwigs, S.
%A Kiriy, A.
%D 2014
%I The Royal Society of Chemistry
%J Polymer Chemistry
%K ipoc-fp
%N 18
%P 5383
%R https://doi.org/10.1039/C4PY00747F
%T Dithienosilole-Based All-Conjugated Block Copolymers Synthesized by a Combination of Quasi-Living Kumada and Negishi Catalyst-Transfer Polycondensations.
%U http://dx.doi.org/10.1039/C4PY00747F
%V 5
%X Herein, we present a quasi-living Negishi-type catalyst-transfer polycondensation of a zinc–organic DTS-based monomer which provides an access to narrowly distributed poly(4,4-bis(2-ethylhexyl)dithieno3,2-b:2′,3′-dsilole (PDTS) with controlled molecular weight. The synthesis of well-defined all-conjugated diblock copolymers containing a PDTS block was accomplished by a combination of Kumada and Negishi catalyst-transfer polycondensations (KCTP and NCTP, respectively). Particularly, it was shown that living P3HT chains obtained by KCTP of magnesium–organic thiophene-based monomer efficiently initiate NCTP of zinc–organic DTS-based monomer. The purity of the DTS-based monomer was found to be a crucial factor for achieving a clean chain-growth polymerization process. A combination of physico-chemical methods was used to prove the success of the block copolymerization.
@article{C4PY00747F,
abstract = {Herein{,} we present a quasi-living Negishi-type catalyst-transfer polycondensation of a zinc–organic DTS-based monomer which provides an access to narrowly distributed poly(4{,}4-bis(2-ethylhexyl)dithieno[3{,}2-b:2′{,}3′-d]silole (PDTS) with controlled molecular weight. The synthesis of well-defined all-conjugated diblock copolymers containing a PDTS block was accomplished by a combination of Kumada and Negishi catalyst-transfer polycondensations (KCTP and NCTP{,} respectively). Particularly{,} it was shown that living P3HT chains obtained by KCTP of magnesium–organic thiophene-based monomer efficiently initiate NCTP of zinc–organic DTS-based monomer. The purity of the DTS-based monomer was found to be a crucial factor for achieving a clean chain-growth polymerization process. A combination of physico-chemical methods was used to prove the success of the block copolymerization.},
added-at = {2022-11-15T14:34:35.000+0100},
author = {Erdmann, T. and Back, J. and Tkachov, R. and Ruff, A. and Voit, B. and Ludwigs, S. and Kiriy, A.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/28ae6e0521f2de11b32f68f313cf205c1/bomiecienski},
doi = {https://doi.org/10.1039/C4PY00747F},
interhash = {ef15e50ace35232e3157eeab7c929097},
intrahash = {8ae6e0521f2de11b32f68f313cf205c1},
journal = {Polymer Chemistry},
keywords = {ipoc-fp},
number = 18,
pages = 5383,
publisher = {The Royal Society of Chemistry},
timestamp = {2022-11-15T13:34:35.000+0100},
title = {Dithienosilole-Based All-Conjugated Block Copolymers Synthesized by a Combination of Quasi-Living Kumada and Negishi Catalyst-Transfer Polycondensations.},
url = {http://dx.doi.org/10.1039/C4PY00747F},
volume = 5,
year = 2014
}
