ICCAS OpenIR
Crystallization, and morphology of poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers
Yao, Chenguang1,2; Yang, Guisheng1,3
2010-03-11
Source PublicationPOLYMER
ISSN0032-3861
Volume51Issue:6Pages:1516-1523
AbstractA new type of poly(ether-ester) based on poly(trimethylene terephthalate) as rigid segments and poly(ethylene oxide terephthalate) as soft segments was synthesized and its crystallization behavior and morphology were investigated Differential Scanning Calorimetry revealed that the copolymer containing 57 wt% soft segments presented a low glass transition temperature (-46.4 degrees C) and a high melting temperature (201.8 degrees C), suggesting that it had the typical characteristic of thermoplastic elastomer. With increasing soft segment content from 35 to 57 wt%, the crystallization morphology transformed from banded spherulites to compact seaweed morphology at a certain film thickness, which was due to the change of surface tension and diffusivity caused by increasing the soft segment content. Moreover, with the decrease of film thickness from 15 to 2 mu m, the crystallization morphology of the copolymer (57 wt% soft segment) changed from wheatear-like, compact seaweed to dendritic. Scanning Electron Microscopy revealed that some flower-like crystals presenting in the bulk, which had been surprisingly found in the poly(ether-ester) segmented block copolymers for the first time Possible mechanism was discussed in the text. (C) 2010 Elsevier Ltd. All rights reserved
KeywordPoly(Trimethylene Terephthalate) Poly(Ether-ester) Dendritic Crystals
DOI10.1016/j.polymer.2010.01.045
Indexed BySCI
Language英语
WOS IDWOS:000275743300039
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70988
Collection中国科学院化学研究所
Corresponding AuthorYang, Guisheng
Affiliation1.Chinese Acad Sci, Key Lab Engn Plast, Joint Lab Polymer Sci & Technol, Inst Chem, 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, and morphology of poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers[J]. POLYMER,2010,51(6):1516-1523.
APA Yao, Chenguang,&Yang, Guisheng.(2010).Crystallization, and morphology of poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers.POLYMER,51(6),1516-1523.
MLA Yao, Chenguang,et al."Crystallization, and morphology of poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers".POLYMER 51.6(2010):1516-1523.
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