ISSN:
1436-5073
Keywords:
aminated poly(vinyl chloride)
;
pH sensors
;
neutral carriers
;
polymer membrane electrodes
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The preparation and potentiometric pH response properties of membranes formulated with various aminated-poly(vinyl chloride) (PVC-NH2) products are described. Products containing secondary and/or primary amino functional groups are obtained by modifying PVC with mono- and/or diamines, respectively. Blank membranes prepared with either type of aminated-polymer exhibit nearly Nernstian potentiometric pH responses over different pH ranges. In general, membranes based on diamino products exhibit pH response over a wider range (5–10.5) than membranes formulated with monoamino products (〈8.0). These potentiometric results are used to estimate the basicity of the various primary and secondary amino sites in the membrane phases.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01244842
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