Formation of Cyclic and Polymeric Structures from Zwitterions

Covalent linkages: Zwitterion‐based covalent linkages were observed in cyclic oligomers and in dispersed polymers based on monomers. Addition of acids and bases promoted transitions between monomeric species and the oligomeric and/or polymeric states. Exchange of constituent monomer units in the cyc...

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Bibliographic Details
Published in:Chemistry : a European journal 2013-05, Vol.19 (22), p.6956-6960
Main Authors: Komatsu, Harunobu, Oi, Wataru, Naritani, Kazumasa, Takaishi, Kazuto, Uchiyama, Masanobu, Muranaka, Atsuya, Maeda, Hiromitsu
Format: Article
Language:English
Subjects:
anions
cations
Chemistry
Covalence
Cyclic oligomers
Exchange
Ions
Linkages
Models, Molecular
Molecular Structure
Monomers
Nanostructures
Polymers
Polymers - chemistry
Precipitates
Precipitation
supramolecular chemistry
zwitterions
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Summary:Covalent linkages: Zwitterion‐based covalent linkages were observed in cyclic oligomers and in dispersed polymers based on monomers. Addition of acids and bases promoted transitions between monomeric species and the oligomeric and/or polymeric states. Exchange of constituent monomer units in the cyclic oligomers was observed in the solution state, whereas the polymers obtained as precipitates from CH3CN were not converted to the cyclic oligomers (see scheme).
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201300704