INVESTIGATION OF THE ROLE OF THE PYRIMIDINE RING IN THE MAIN-CHAIN OF POLYAMIDO ACIDS AND POLYIMIDES .2. CHARACTERISTICS OF THE THERMOCYCLIZATION OF POLYPYROMELLITAMIDO ACIDS BASED ON 2,5-BIS(P-AMINOPHENYL)PYRIMIDINE AND 4,4'-DIAMINOTERPHENYL

被引：6

作者：

ARTEMEVA, VN ^{[1
]}

KUDRYAVTSEV, VV ^{[1
]}

NEKRASOVA, EM ^{[1
]}

SKLIZKOVA, VP ^{[1
]}

SHIBAEV, LA ^{[1
]}

STEPANOV, NG ^{[1
]}

SAZANOV, YN ^{[1
]}

FEDOROVA, GN ^{[1
]}

SHKURKO, OP ^{[1
]}

BOROVIK, VP ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,NOVOSIBIRSK INST ORGAN CHEM,NOVOSIBIRSK 630090,RUSSIA

来源：

BULLETIN OF THE RUSSIAN ACADEMY OF SCIENCES-DIVISION OF CHEMICAL SCIENCE | 1992年 / 41卷 / 10期

关键词：

POLYAMIDO ACID; POLYIMIDE; 2,5-BIS(P-AMINOPHENYL)PYRIMIDINE;

D O I：

10.1007/BF00863811

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The thermocyclization of polypyromellitamido acids based on 2,5-bis(p-aminophenyl)pyrimidine and 4,4'-diaminoterphenyl was investigated by thermogravimetric and mass spectrometric analysis. Characteristics of the thermocyclization of pyrimidine-containing polyamido acids due to the presence of a basic nitrogen-containing ring in the main macrochain were revealed. The hypothesis advanced in Part 1, that the pyrimidine ring displaces solvent molecules bound to the polyamido acid, was confirmed. The hypothesis of the presence of shift packing in a pyrimidine-containing polyamido acid was confirmed by its greater kinetic homogeneity in comparison with the completely aromatic analog.

引用

页码：1797 / 1800

页数：4