ICCAS OpenIR
The thermal degradation mechanism and thermal mechanical properties of two high performance heterocyclic polymer fibers
Wu, Z; Li, F; Huang, L; Shi, Y; Jin, X; Fang, S; Chuang, K; Lyon, RE; Harris, FW; Cheng, SZD
2000
Source PublicationJOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN1418-2874
Volume59Issue:1-2Pages:361-373
AbstractThe thermal mechanical properties and degradation behaviors were studied on fibers prepared from two high-performance, heterocyclic polymers, poly(p-phenylenebenzobisthiazole) (PBZT) and poly(p-phenylenebenzobisoxazole) (PBZO). Our research demonstrated that these two fibers exhibited excellent mechanical properties and outstanding thermal and thermo-oxidative stability. Their long-term mechanical tensile performance at high temperatures was found to be critically associated with the stability of the C-O or C-S linkage at the heterocyclic rings on these polymers' backbones. PBZO fibers with the C-O linkages displayed substantially higher thermal stability compared to PBZT containing C-S linkages. High resolution pyrolysis-gas chromatography/mass spectrometry provided the information of the pyrolyzates' compositions and distributions as well as their relationships with the structures of PBZT and PBZO. Based on the analysis of the compositions and distributions of all pyrolyzates at different temperatures, it was found that the thermal degradation mechanisms for both of these heterocyclic polymers were identical. Kevlar(R)-49 fibers were also studied under the same experimental conditions in order to make a comparison of thermo-oxidative stability and long-term mechanical performance at high temperatures with PBZO and PBZT fibers. The data of two high-performance aromatic polyimide fibers were also included as references.
KeywordHeterocyclic Polymers Mechanical Properties Thermal Degradation
Indexed BySCI
Language英语
WOS IDWOS:000085462800027
PublisherKLUWER ACADEMIC PUBL
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/75776
Collection中国科学院化学研究所
Corresponding AuthorCheng, SZD
Affiliation1.Univ Akron, Maurice Morton Inst, Akron, OH 44325 USA
2.Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA
3.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Polymer Phys Lab, Beijing 100080, Peoples R China
4.NASA, Lewis Res Ctr, Cleveland, OH 44135 USA
5.Fed Aviat Adm, Fire Res Branch, Atlantic City Int Airport, Atlantic City, NJ 08405 USA
Recommended Citation
GB/T 7714
Wu, Z,Li, F,Huang, L,et al. The thermal degradation mechanism and thermal mechanical properties of two high performance heterocyclic polymer fibers[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2000,59(1-2):361-373.
APA Wu, Z.,Li, F.,Huang, L.,Shi, Y.,Jin, X.,...&Cheng, SZD.(2000).The thermal degradation mechanism and thermal mechanical properties of two high performance heterocyclic polymer fibers.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,59(1-2),361-373.
MLA Wu, Z,et al."The thermal degradation mechanism and thermal mechanical properties of two high performance heterocyclic polymer fibers".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 59.1-2(2000):361-373.
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