ICCAS OpenIR
Preparation and characterization of mono-end-capped PMR polyimide matrix resins for high-temperature applications
Hao, JY; Hu, AJ; Yang, SY
2002-12-01
Source PublicationHIGH PERFORMANCE POLYMERS
ISSN0954-0083
Volume14Issue:4Pages:325-340
AbstractMono-end-capped PMR-type polyimide matrix resins were prepared by incorporation of carbonyl groups into the polymer backbone of second-generation PMR polyimide by two synthetic pathways. The matrix resin features, thermal processing characteristics of B-stage resins as well as thermal and thermo-oxidative stability of the thermally cured polyimide materials, were systemically investigated. Experimental results indicated that the matrix resins were low-viscosity and stable homogeneous solutions with 50% solid content in ethanol, possessing good characteristics for preparation of carbon or graphite fiber prepregs or B-stage molding compounds. The thermally cured polyimide materials exhibited glass transition temperatures (T-g) of >470 degreesC and onset temperatures of the storage modulus of >440 degreesC, 100 degreesC higher than those of commercial materials. Continuous carbon fiber-reinforced composites were fabricated, which have very high T-g and onset temperature of storage modulus at 446 degreesC. Preliminary results demonstrated that the composites laminate exhibited high mechanical strength and mechanical property retention at 371 degreesC, superior to the properties of commercial composite materials (CF/PMR-II-50).
KeywordPmr Polyimides Heat Resistant Polymer Composites
Indexed BySCI
Language英语
WOS IDWOS:000180396500001
PublisherSAGE PUBLICATIONS LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79392
Collection中国科学院化学研究所
Corresponding AuthorYang, SY
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Hao, JY,Hu, AJ,Yang, SY. Preparation and characterization of mono-end-capped PMR polyimide matrix resins for high-temperature applications[J]. HIGH PERFORMANCE POLYMERS,2002,14(4):325-340.
APA Hao, JY,Hu, AJ,&Yang, SY.(2002).Preparation and characterization of mono-end-capped PMR polyimide matrix resins for high-temperature applications.HIGH PERFORMANCE POLYMERS,14(4),325-340.
MLA Hao, JY,et al."Preparation and characterization of mono-end-capped PMR polyimide matrix resins for high-temperature applications".HIGH PERFORMANCE POLYMERS 14.4(2002):325-340.
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