Phase Behavior and dewetting for polymer blend films studied by in situ AFM and XPS: From thin to ultrathin films
文献类型:期刊论文
作者 | Liao, Yonggui; You, Jichun; Shi, Tongfei; An, Lijia; Dutta, Pradip Kumar |
刊名 | LANGMUIR
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出版日期 | 2007-10-23 |
卷号 | 23期号:22页码:11107-11111 |
ISSN号 | 0743-7463 |
DOI | 10.1021/la701761p |
英文摘要 | In this work, the film thickness (l(0)) effect on the phase and dewetting behaviors of the blend film of poly(methyl methacrylate)/poly (styrene-ran-acrylonitrile) (PMMA/SAN) has been studied by in situ atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). The thinner film shows the more compatibility of the blend, and the phase separation of the film occurs at l(0) > 5R(g) (radius of gyration). An initially time-independent q*, the characteristic wavenumber of the phase image, which is in good agreement of Cahn's linearized theory for the early stage of spinodal decomposition, has been obtained in real space and discussed in detail. For 5R(g) > l(0) > 3R(g), a "pseudo-dewetting/(phase separation + wetting)" behavior occurs, where the pseudo-wetting is driven by the concentration fluctuation mechanism. For 10 < 3R(g), a "real dewetting/(phase separation + wetting)" behavior occurs. |
语种 | 英语 |
WOS记录号 | WOS:000250228100040 |
出版者 | AMER CHEMICAL SOC |
源URL | [http://ir.iccas.ac.cn/handle/121111/61925] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Shi, Tongfei |
作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.MN Natl Inst Technol, Dept Chem, Allahabad 211004, Uttar Pradesh, India |
推荐引用方式 GB/T 7714 | Liao, Yonggui,You, Jichun,Shi, Tongfei,et al. Phase Behavior and dewetting for polymer blend films studied by in situ AFM and XPS: From thin to ultrathin films[J]. LANGMUIR,2007,23(22):11107-11111. |
APA | Liao, Yonggui,You, Jichun,Shi, Tongfei,An, Lijia,&Dutta, Pradip Kumar.(2007).Phase Behavior and dewetting for polymer blend films studied by in situ AFM and XPS: From thin to ultrathin films.LANGMUIR,23(22),11107-11111. |
MLA | Liao, Yonggui,et al."Phase Behavior and dewetting for polymer blend films studied by in situ AFM and XPS: From thin to ultrathin films".LANGMUIR 23.22(2007):11107-11111. |
入库方式: OAI收割
来源:化学研究所
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