In this paper we highlight the general strategies established over the time for the functionalization of poly(organophosphazenes) in order to modify both the chemical structures and the chemicophysical properties of these substances. These modifications have been obtained by reacting poly(dichlorophosphazene) with difunctional nucleophiles thus introducing selected chemical functions into the polyphosphazene substrates or by carrying out suitable functionalization processes on pre-synthesized phosphazene macromolecules. Particular attention has been paid to the chemical modification of polyphosphazenes containing 2,2,2-trifluoroethoxy, phenoxy, 4-ethylphenoxy, 4-sec-butylphonoxy and 4-methoxyphenoxy substituents as these groups were attached to phosphazene homopolymers and copolymers that have been considered in the past for industrial development.
Functionalized poly(organophosphazenes)
BERTANI, ROBERTA;TONDELLO, EUGENIO
1997
Abstract
In this paper we highlight the general strategies established over the time for the functionalization of poly(organophosphazenes) in order to modify both the chemical structures and the chemicophysical properties of these substances. These modifications have been obtained by reacting poly(dichlorophosphazene) with difunctional nucleophiles thus introducing selected chemical functions into the polyphosphazene substrates or by carrying out suitable functionalization processes on pre-synthesized phosphazene macromolecules. Particular attention has been paid to the chemical modification of polyphosphazenes containing 2,2,2-trifluoroethoxy, phenoxy, 4-ethylphenoxy, 4-sec-butylphonoxy and 4-methoxyphenoxy substituents as these groups were attached to phosphazene homopolymers and copolymers that have been considered in the past for industrial development.Pubblicazioni consigliate
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