Fluorinated heterocyclic polyamides

被引：42

作者：

Hamciuc, E ^{[1
]}

Hamciuc, C ^{[1
]}

Sava, I ^{[1
]}

Bruma, M ^{[1
]}

机构：

[1] Romanian Acad, Inst Macromol Chem, Iasi 6600, Romania

来源：

EUROPEAN POLYMER JOURNAL | 2001年 / 37卷 / 02期

关键词：

hexafluoroisoporpylidene; methylene; high performance polyamides; phenylquinoxaline; oxadiazole;

D O I：

10.1016/S0014-3057(00)00113-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

New thermostable fluorinated heterocyclic polyamides have been synthesized by low-temperature solution polycondensation of various aromatic diamines which contain phenylquinoxaline or 1,3,4-oxadiazole units, with a diacid chloride containing imide rings, hexafluoroisopropylidene (6F) group and methylene bridges. These polymers are readily soluble in polar amidic solvents, such as N-methylpyrrolidinone (NMP) and dimethylformamide (DMF) and can be cast into flexible thin films from solutions. They show high thermal stability with decomposition temperature being above 350 degreesC and glass transition temperature in the range of 260-306 degreesC, good electrical insulating properties with dielectric constant being in the range of 3.3-3.6 and tough mechanical properties. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：287 / 293

页数：7

共 28 条

[1]

ARNOLD C, 1979, MACROMOL REV, V14, P265

[2] POLYAMIDE COPOLYMERS CONTAINING HEXAFLUOROISOPROPYLENE GROUPS [J].

BRUMA, M ;

SCHULZ, B ;

MERCER, FW .

JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, 1995, A32 (02) :259-286

[3]

Bruma M, 1996, J MACROMOL SCI R M C, VC36, P119

[4]

Bruma M., 1997, HDB THERMOPLASTICS, P771

[5]

BRUMA M, 1989, J MACROMOL SCI CHEM, V26, P968

[6]

Cassidy P.E., 1997, MODERN FLUOROPOLYMER, P173

[7]

COMAN P, 1993, ROM REP PHYS, V45, P575

[8] POLYISOPHTHALAMIDES WITH PENDENT PHTHALIMIDE GROUPS [J].

DIAKOUMAKOS, CD ;

MIKROYANNIDIS, JA .

POLYMER, 1994, 35 (09) :1986-1990

[9]

Hamciuc C., 1995, High Performance Polymers, V7, P451, DOI 10.1088/0954-0083/7/4/007

[10]

Hamciuc C, 1996, POLYM ADVAN TECHNOL, V7, P847, DOI 10.1002/(SICI)1099-1581(199611)7:11<847::AID-PAT590>3.0.CO

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