ICCAS OpenIR
Ordering-induced micro-bands in thin films of a main-chain liquid crystalline chloro-poly(aryl ether ketone)
Zhang, SJ; Fu, LX; Zhang, J; Liu, JJ; Yang, DC; Ge, JJ; Li, CY; Cheng, SZD
2004-05-13
Source PublicationPOLYMER
ISSN0032-3861
Volume45Issue:11Pages:3967-3972
AbstractMicro-banded textures developed from thin films of a main-chain thermotropic liquid crystalline chloro-poly(aryl ether ketone) in the melt were investigated using transmission electron microscopy (TEM). selective area electron diffraction, and atomic force microscopy techniques. The micro-banded textures were formed in the copolymer thin films after annealing at temperatures between 320 and 330degreesC, where a highly ordered smectic crystalline phase is formed without mechanical shearing. The micro-banded textures displayed a sinusoidal-like periodicity with a spacing of 150 nm and an amplitude of 2 rim. The long axis of the banded texture was parallel to the b-axis of an orthorhombic unit cell. In the convex regions, the molecular chains exhibited a homeotropic alignment, i.e. the chain direction was parallel to the film normal. In the concave re-ions, the molecular chains possessed a tilted alignment. In addition to the effects of annealing temperatures and times, the thickness of the film played a vital role in the formation of the banded texture. A possible formation mechanism of this banded texture vas also suggested and discussed. It was suggested that the micro-bands were formed during cooling, (C) 2004 Elsevier Ltd. All rights reserved.
KeywordChloro-poly(Aryl Ether Ketone) Liquid Crystalline Polymer Banded Texture
DOI10.1016/j.polymer.2004.01.083
Indexed ByISTP ; SCI
Language英语
WOS IDWOS:000221486300046
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82330
Collection中国科学院化学研究所
Corresponding AuthorYang, DC
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Univ Akron, Maurice Morton Inst, Akron, OH 44325 USA
3.Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA
4.Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA
Recommended Citation
GB/T 7714
Zhang, SJ,Fu, LX,Zhang, J,et al. Ordering-induced micro-bands in thin films of a main-chain liquid crystalline chloro-poly(aryl ether ketone)[J]. POLYMER,2004,45(11):3967-3972.
APA Zhang, SJ.,Fu, LX.,Zhang, J.,Liu, JJ.,Yang, DC.,...&Cheng, SZD.(2004).Ordering-induced micro-bands in thin films of a main-chain liquid crystalline chloro-poly(aryl ether ketone).POLYMER,45(11),3967-3972.
MLA Zhang, SJ,et al."Ordering-induced micro-bands in thin films of a main-chain liquid crystalline chloro-poly(aryl ether ketone)".POLYMER 45.11(2004):3967-3972.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, SJ]'s Articles
[Fu, LX]'s Articles
[Zhang, J]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, SJ]'s Articles
[Fu, LX]'s Articles
[Zhang, J]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, SJ]'s Articles
[Fu, LX]'s Articles
[Zhang, J]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.