Water Transport Polymers – Structure/Property Relationships of a Series of Phosphazene Polymers
Autor: | Thomas A. Luther, Mark L. Stone, William F. Bauer, Eric S. Peterson, John R. Klaehn, Frederick F. Stewart, Mason K. Harrup, Christopher J. Orme, John Edwin Wey |
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Rok vydání: | 2010 |
Předmět: |
chemistry.chemical_classification
Water transport Process Chemistry and Technology General Chemical Engineering Structure property Filtration and Separation Aromaticity General Chemistry Polymer Critical difference chemistry.chemical_compound chemistry Polymer chemistry Nucleophilic substitution Organic chemistry Pendant group Phosphazene |
Zdroj: | Separation Science and Technology. 45:1880-1885 |
ISSN: | 1520-5754 0149-6395 |
DOI: | 10.1080/01496395.2010.493817 |
Popis: | A study was undertaken to explore the water passing properties of a series of phosphazene polymers versus the attached pendant group structure. Pendant groups containing different numbers of ethyleneoxy groups were synthetically attached to the backbone of phosphazene polymers. Phosphazene polymers facilitate these types of studies because, during their synthesis, the polymer backbone is formed first and then the desired pendant groups are attached through nucleophilic substitution. For these studies, four polymer series were synthesized and tested for their water passing properties. The polymers contained different amounts of ethyleneoxy units. Two different polymer families were synthesized and compared in this work. The critical difference in the two polymer series is that one contained pendant groups with aromatic rings, in addition to the oligioethyleneoxy moieties, while the other has no aromatic rings in its structure. Polymers with phenyl group-containing pendant groups exhibited poor water permea... |
Databáze: | OpenAIRE |
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