ICCAS OpenIR
Thermal degradation mechanism and thermal mechanical properties of two high-performance aromatic polyimide fibers
Li, FM; Huang, LY; Shi, Y; Jin, XG; Wu, ZQ; Shen, ZH; Chuang, K; Lyon, RE; Harris, FW; Cheng, SZD
1999
Source PublicationJOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS
ISSN0022-2348
VolumeB38Issue:1-2Pages:107-122
AbstractTwo organo-soluble aromatic polyimides have been synthesized by introducing pendant groups of trifluromethyl or methyl onto the 2- and 2'-positions of a biphenyl diamine and reacting each of them with biphenyltetracarboxylic dianhydride (BPDA): 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl (PFMB) or 2,2'-dimethyl-4,4'-diaminobiphenyl (DMB). These two polyimides, BPDA-PFMB and BPDA-DMB, are prepared via a one-step polycondensation method, and they can be fabricated into fibers, films, and other application forms. Our research shows that in fiber applications, these two fibers exhibit excellent mechanical properties and outstanding thermal and thermooxidative stability. Their longterm mechanical tensile performance at high temperatures is found to be critically associated with the type of side pendant groups at the 2- and 2'-positions of the diamines. High-resolution pyrolysis-gas chromatography/mass spectrometry (PyGC-MS) results show that the pyrorgams of these two polyimides possess more than 16 pyrolyzates. Based on the compositions and distributions of the pyrolyzates at different temperatures, the thermal degradation mechanisms for both of the polyimides are found to be the same.
Indexed BySCI
Language英语
WOS IDWOS:000079543000009
PublisherMARCEL DEKKER INC
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74926
Collection中国科学院化学研究所
Corresponding AuthorCheng, SZD
Affiliation1.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
2.Univ Akron, Maurince Morton Inst, Akron, OH 44325 USA
3.Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA
4.NASA, Lewis Res Ctr, Cleveland, OH 44135 USA
5.Atlantic City Int Airport, Fed Aviat Adm, Fire Res Branch, Atlantic City, NJ 08405 USA
Recommended Citation
GB/T 7714
Li, FM,Huang, LY,Shi, Y,et al. Thermal degradation mechanism and thermal mechanical properties of two high-performance aromatic polyimide fibers[J]. JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS,1999,B38(1-2):107-122.
APA Li, FM.,Huang, LY.,Shi, Y.,Jin, XG.,Wu, ZQ.,...&Cheng, SZD.(1999).Thermal degradation mechanism and thermal mechanical properties of two high-performance aromatic polyimide fibers.JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS,B38(1-2),107-122.
MLA Li, FM,et al."Thermal degradation mechanism and thermal mechanical properties of two high-performance aromatic polyimide fibers".JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS B38.1-2(1999):107-122.
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