Solution Behavior of the Poly[bis(phenoxycarboxylate)]phosphazene Polyelectrolyte

Authors :: M. Dentini
A. Barbetta
G. Masci
V. Crescenzi
D. Capitani
A.L. Segre
Source :: Macromolecules, 30 (1997): 7456–7461. doi:10.1021/ma9703463, info:cnr-pdr/source/autori:M. Dentini, A. Barbetta, G. Masci, V. Crescenzi, D. Capitani, A.L. Segre/titolo:Solution Behavior of the Poly[bis(phenoxycarboxylate)]phosphazene Polyelectrolyte/doi:10.1021%2Fma9703463/rivista:Macromolecules (Print)/anno:1997/pagina_da:7456/pagina_a:7461/intervallo_pagine:7456–7461/volume:30
Publication Year :: 1997
Publisher :: American Chemical Society., [Easton, Pa.], Stati Uniti d'America, 1997.
Abstract: The behavior of a high molecular weight sodium poly[bis(carboxylatophenoxy)phosphazene] (NaPCPP) polyelectrolyte sample in aqueous solution has been investigated by means of viscosity, conductivity, sodium counterion potentiometric ''activity coefficient'' (gamma(+)) measurements, and Na-23-NMR experiments. The set of data clearly and consistently points out the peculiar polyelectrolytic behavior of NaPCPP in water. In our opinion, this is essentially due to the pal tial hydrophobic character of flexible NaPCPP chains which would easily ''entangle'' even at low concentrations in water and, in addition, would give rise to ''entanglement collapse'' with increasing solution temperature.

Subjects :: ELECTROLYTES
HYDROGELS
CHAIN DYNAMICS
RELAXATION
POLYPHOSPHAZENE

Language :: English
Database :: OpenAIRE
Journal :: Macromolecules, 30 (1997): 7456–7461. doi:10.1021/ma9703463, info:cnr-pdr/source/autori:M. Dentini, A. Barbetta, G. Masci, V. Crescenzi, D. Capitani, A.L. Segre/titolo:Solution Behavior of the Poly[bis(phenoxycarboxylate)]phosphazene Polyelectrolyte/doi:10.1021%2Fma9703463/rivista:Macromolecules (Print)/anno:1997/pagina_da:7456/pagina_a:7461/intervallo_pagine:7456–7461/volume:30
Accession number :: edsair.cnr...........263bc8f2a1978709e8111d514a06fff1
Full Text :: https://doi.org/10.1021/ma9703463

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