One-pot synthesis of aromatic poly(1,3,4-oxadiazole)s in novel solvents - ionic liquids

被引:42
作者
Lozinskaya, EI [1 ]
Shaplov, AS [1 ]
Kotseruba, MV [1 ]
Komarova, LI [1 ]
Lyssenko, KA [1 ]
Antipin, MY [1 ]
Golovanov, DG [1 ]
Vygodskii, YS [1 ]
机构
[1] Russian Acad Sci, AN Nesmeyanov Organoelement Cpds Inst, Moscow, Russia
关键词
condensing agent; direct polycondensation; ionic liquids; poly(1,3,4-oxadiazole)s; polyhydrazides; triphenyl phosphite;
D O I
10.1002/pola.21141
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The new convenient method for the synthesis of high molecular weight aromatic poly(1,3,4-oxadiazole)s (PODS) has been proposed. These polymers were prepared by "one-pot" procedure from dicarboxylic acid and hydrazine's salt (sulfate, phosphate) or dicarboxylic acid dihydrazides. The mixture of ionic liquid and triphenyl phosphite was used both as a solvent and condensing agent. The polycyclization occurred at a sufficiently low temperature of 210 degrees C for 2-5 h and resulted in obtaining film-forming PODS having inherent viscosities up to 0.9 dL/g and good thermal stability. 0 2005 Wiley Periodicals, Inc.
引用
收藏
页码:380 / 394
页数:15
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