A simplified and convenient laboratory-scale preparation of 14N or 15N high molecular weight poly(dichlorophosphazene) directly from PCl5

被引：75

作者：

Carriedo, GA ^{[1
]}

Alonso, FLG ^{[1
]}

Gómez-Elipe, P ^{[1
]}

Fidalgo, JI ^{[1
]}

Alvarez, JLG ^{[1
]}

Presa-Soto, A ^{[1
]}

机构：

[1] Univ Oviedo, Fac Quim, Dept Quim Organ & Inorgan, E-33071 Oviedo, Spain

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2003年 / 9卷 / 16期

关键词：

inorganic polymers; poly(dichlorophosphazene); polyphosphazenes; synthetic methods;

D O I：

10.1002/chem.200304750

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple and convenient onepot synthesis of THF solutions of high molecular weight poly(dichlorophosphazene) [NPCl2](n), or the N-15 isotopomer [(NPCl2)-N-15](n), starting directly from PCl5 and NH4Cl or (NH4Cl)-N-15 in a solution of 1,2,4-trichlorobenzene in the presence of sulfamic acid and calcium sulfate dihydrate, is described. The solutions of [NPCl2](n) in THF, which are obtained free of poly(tetrahydrofuran) by preparing them in the presence of K2CO3, can be reacted directly with phenols, biphenols, or even HO-CH2CF3 in the presence of K2CO3 Or Cs2CO3 to obtain, after a very simple workup, the corresponding polyphosphazene derivatives almost free of chlorine.

引用

页码：3833 / 3836

页数：4

共 33 条

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