完整後設資料紀錄
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dc.contributor.authorLin, MLen_US
dc.contributor.authorChang, KHen_US
dc.contributor.authorChang, FCen_US
dc.contributor.authorLi, MSen_US
dc.contributor.authorMa, CCMen_US
dc.date.accessioned2014-12-08T15:01:27Z-
dc.date.available2014-12-08T15:01:27Z-
dc.date.issued1997-09-30en_US
dc.identifier.issn0887-6266en_US
dc.identifier.urihttp://hdl.handle.net/11536/300-
dc.description.abstractThe transamidation reaction converts the carbonate and amine into N-aliphatic aromatic carbamate and urea, causing the equivalent of oxirane and amine nonstoichiometric in the primary cure stage. After postcure, the substitution reaction takes place and results in a more tightly crosslinked structure. Such a higher crosslinking density is responsible for higher T-g, tensile strength, and tensile modulus in the postcure stage than that in the primary and secondary cure stages. This trend is more pronounced in those PC-epoxy blends containing higher molecular weight aliphatic amine or a higher content of PC. This phenomenon is due to the difference in the fraction of amino group of aliphatic amine consumed in the transamidation. PC-epoxy/aliphatic amine blends show minor improvement in the high strain rate Izod impact tests, while toughness improvement for some blends is substantial at low strain rate tensile tests. (C) 1997 John Wiley & Sons, Inc.en_US
dc.language.isoen_USen_US
dc.subjectepoxyen_US
dc.subjectblenden_US
dc.subjectpolycarbonateen_US
dc.subjecttransesterificationen_US
dc.subjecttransamidation carbamateen_US
dc.subjectureaen_US
dc.titleThe epoxy-polycarbonate blends cured with aliphatic amine .2. Thermal and mechanical properties mechanismsen_US
dc.typeArticleen_US
dc.identifier.journalJOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICSen_US
dc.citation.volume35en_US
dc.citation.issue13en_US
dc.citation.spage2183en_US
dc.citation.epage2191en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
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