CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Confinement effects on glass transition temperature, transition breadth, and linear expansivity: An ultraslow X-ray reflectivity study on supported ultrathin polystyrene films
Yang, Chunming; Onitsuka, Rena; Takahashi, Isao
2013
Source PublicationEUROPEAN PHYSICAL JOURNAL E
ISSN1292-8941
Volume36Issue:6
AbstractX-ray reflectivity measurements of the glass transition in thin polystyrene films supported on Si substrates were performed at slow cooling rates ranging from 0.62 to 0.01 degrees C/min. At a cooling rate of 0.14 degrees C/min, a depression in the glass transition temperature T-g was clearly observed with decreasing thickness. However, at a cooling rate of 0.62 degrees C/min, only a slight decrease in T-g for a 12-nm-thick film was observed, while at an ultraslow cooling rate of 0.01 degrees C/min, a significant reduction in the T-g of ultrathin films (12 and 6 nm) was observed. As the thickness decreased, a broadening in the width of the glass transition, w, was found at higher cooling rates (0.62 degrees C/min and 0.14 degrees C/min), while narrowing of w was observed at ultraslow cooling rates of 0.01 degrees C/min and 0.04 degrees C/min. A narrow distribution of relaxation time in the ultrathin films indicates that most segments are able to relax under the ultraslow cooling process, thus showing an inherent reduction in the T-g of the confined thin polymer films.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000321428200010
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13695
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Yang, Chunming,Onitsuka, Rena,Takahashi, Isao. Confinement effects on glass transition temperature, transition breadth, and linear expansivity: An ultraslow X-ray reflectivity study on supported ultrathin polystyrene films[J]. EUROPEAN PHYSICAL JOURNAL E,2013,36(6).
APA Yang, Chunming,Onitsuka, Rena,&Takahashi, Isao.(2013).Confinement effects on glass transition temperature, transition breadth, and linear expansivity: An ultraslow X-ray reflectivity study on supported ultrathin polystyrene films.EUROPEAN PHYSICAL JOURNAL E,36(6).
MLA Yang, Chunming,et al."Confinement effects on glass transition temperature, transition breadth, and linear expansivity: An ultraslow X-ray reflectivity study on supported ultrathin polystyrene films".EUROPEAN PHYSICAL JOURNAL E 36.6(2013).
Files in This Item:
File Name/Size DocType Version Access License
Confinement effects (681KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yang, Chunming]'s Articles
[Onitsuka, Rena]'s Articles
[Takahashi, Isao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang, Chunming]'s Articles
[Onitsuka, Rena]'s Articles
[Takahashi, Isao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang, Chunming]'s Articles
[Onitsuka, Rena]'s Articles
[Takahashi, Isao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Confinement effects on glass transition temperature, transition breadth, and linear expansivity-An ultraslow X-ray reflectivity study on supported ultrathin polystyrene films.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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