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
Rok vydání: 2010
Předmět:
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