ICCAS OpenIR
Crystallization-Induced Aging in Poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) Segmented Block Copolymers
Yao, Chenguang1,2; Yang, Guisheng1,3
2010-02-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN0887-6266
Volume48Issue:4Pages:411-416
AbstractA new type poly(ether-ester) based on poly(trimethylene terephthalate) as rigid segments and poly(ethylene oxide terephthalate) as soft segments was synthesized and its aging behavior were investigated. Different from other polymer, the segmented block copolymers exhibited a unique aging mechanism. That is, the degradation of mechanical property within short term annealing was due to the overgrown crystals and dramatically increased crystallinity, which was proved by field emission scanning electron microscope (FE-SEM) and differential scanning calorimetry (DSC), respectively. The deterioration in mechanical property after long term annealing was the results of both the increase in crystallinity and the decrease in molecular weight. Moreover, FE-SEM showed many interesting flower-like crystals presented on the surface of annealed sample. The flower-like crystals consist of several radialized petal-like arms and a more densely packed center, which has been seldom found in polymer bulk. Wide-angle x-ray diffraction results showed that the copolymer has the same crystal structure as PTT. Such poly(ether-ester) or its blends with other polymer could be suitable for rapid degradable products, such as package and vessel. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 411-416, 2010
KeywordAging Crystallization Microstructure Polycondensation Poly(Ether-ester)
DOI10.1002/polb.21901
Indexed BySCI
Language英语
WOS IDWOS:000274751200003
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70856
Collection中国科学院化学研究所
Corresponding AuthorYang, Guisheng
Affiliation1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Joint Lab Polymer Sci & Technol, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Shanghai Genius Adv Mat Co Ltd, Shanghai 201109, Peoples R China
Recommended Citation
GB/T 7714
Yao, Chenguang,Yang, Guisheng. Crystallization-Induced Aging in Poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) Segmented Block Copolymers[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2010,48(4):411-416.
APA Yao, Chenguang,&Yang, Guisheng.(2010).Crystallization-Induced Aging in Poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) Segmented Block Copolymers.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,48(4),411-416.
MLA Yao, Chenguang,et al."Crystallization-Induced Aging in Poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) Segmented Block Copolymers".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 48.4(2010):411-416.
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