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Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization
The presence of a bulky peripheral wedge destabilizes the homo-assembly of an amide functionalized acceptor (A) monomer and thereby enables the formation of an alternating supramolecular copolymer with an amide appended donor (D) monomer via the synergistic effect of H-bonding and the charge-transfe...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5356505/ https://www.ncbi.nlm.nih.gov/pubmed/28451242 http://dx.doi.org/10.1039/c6sc02640k |
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author | Chakraborty, Saptarshi Kar, Haridas Sikder, Amrita Ghosh, Suhrit |
author_facet | Chakraborty, Saptarshi Kar, Haridas Sikder, Amrita Ghosh, Suhrit |
author_sort | Chakraborty, Saptarshi |
collection | PubMed |
description | The presence of a bulky peripheral wedge destabilizes the homo-assembly of an amide functionalized acceptor (A) monomer and thereby enables the formation of an alternating supramolecular copolymer with an amide appended donor (D) monomer via the synergistic effect of H-bonding and the charge-transfer (CT) interaction with a remarkably high K (a) of 31 000 M(–1). In sharp contrast, H-bonding driven homo-polymers of A and D are formed by just replacing the bulky chains of the A monomer with linear hydrocarbons. By taking advantage of the clear difference in the critical temperature for the onset of the AA or DD homo-assemblies and DA co-assembly (T (DA) ≫ T (AA) or T (DD)), the supramolecular polymerization pathway of the NDI-monomer could be fully diverted from isodesmic to cooperative in the presence of a small amount of DAN which helped the in situ production of nucleating sites involving the D–A CT-complex at a relatively higher temperature and the subsequent chain growth at T (AA) following the nucleation-elongation model. |
format | Online Article Text |
id | pubmed-5356505 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-53565052017-04-27 Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization Chakraborty, Saptarshi Kar, Haridas Sikder, Amrita Ghosh, Suhrit Chem Sci Chemistry The presence of a bulky peripheral wedge destabilizes the homo-assembly of an amide functionalized acceptor (A) monomer and thereby enables the formation of an alternating supramolecular copolymer with an amide appended donor (D) monomer via the synergistic effect of H-bonding and the charge-transfer (CT) interaction with a remarkably high K (a) of 31 000 M(–1). In sharp contrast, H-bonding driven homo-polymers of A and D are formed by just replacing the bulky chains of the A monomer with linear hydrocarbons. By taking advantage of the clear difference in the critical temperature for the onset of the AA or DD homo-assemblies and DA co-assembly (T (DA) ≫ T (AA) or T (DD)), the supramolecular polymerization pathway of the NDI-monomer could be fully diverted from isodesmic to cooperative in the presence of a small amount of DAN which helped the in situ production of nucleating sites involving the D–A CT-complex at a relatively higher temperature and the subsequent chain growth at T (AA) following the nucleation-elongation model. Royal Society of Chemistry 2017-02-01 2016-09-19 /pmc/articles/PMC5356505/ /pubmed/28451242 http://dx.doi.org/10.1039/c6sc02640k Text en This journal is © The Royal Society of Chemistry 2016 http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Chemistry Chakraborty, Saptarshi Kar, Haridas Sikder, Amrita Ghosh, Suhrit Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization |
title | Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization
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title_full | Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization
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title_fullStr | Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization
|
title_full_unstemmed | Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization
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title_short | Steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization
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title_sort | steric ploy for alternating donor–acceptor co-assembly and cooperative supramolecular polymerization |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5356505/ https://www.ncbi.nlm.nih.gov/pubmed/28451242 http://dx.doi.org/10.1039/c6sc02640k |
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