Molecular weight effects on the phase morphology of PS/P4VP blend films on homogeneous SAM and heterogeneous SAM/Au substrates
文献类型：期刊论文
| 作者 | Li, X; Xing, RB; Zhang, Y; Han, YC; An, LJ |
| 刊名 | POLYMER
 |
| 出版日期 | 2004-03-01 |
| 卷号 | 45期号:5页码:1637-1646 |
| 关键词 | Ps/p4vp Blend Films Molecular Weight Patterned Substrates |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2003.12.075 |
| 英文摘要 | The effects of the molecular weight of polystyrene (PS) component on the phase separation of PS/poly(4-vinylpyridine) (PS/P4VP) blend films on homogeneous alkanethiol self-assembled monolayer (SAM) and heterogeneous SAM/Au substrates have been investigated by means of atomic force microscopy (AFM). For the PS (22.4k)/P4VP (60k) system, owing to the molecular weight of PS component is relatively small, the well-aligned PS and P4VP stripes with good thermal stability are directed by the patterned SAM/Au surfaces. With the increase of the molecular weight of PS component (for the PS (582k)/P4VP (60k) system), the diffusion of P4VP is hindered by the high viscosity of PS during the fast spin-coating process. The phase separation behavior of PS/P4VP on the SAM/Au patterned substrates is similar to that on the homoueneous SAM and cannot be easily directed by the patterned SAM surfaces even though the characteristic length of the lateral domain morphology is commensurate with the stripe width. This indicates that the relative viscosity of the PS is one of the dominant factors in obtaining well-aligned pattern by the phase separation of polymer blends. (C) 2004 Published by Elsevier Ltd. |
| 语种 | 英语 |
| WOS记录号 | WOS:000189105900028 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/55527]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Han, YC |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, X,Xing, RB,Zhang, Y,et al. Molecular weight effects on the phase morphology of PS/P4VP blend films on homogeneous SAM and heterogeneous SAM/Au substrates[J]. POLYMER,2004,45(5):1637-1646. |
| APA | Li, X,Xing, RB,Zhang, Y,Han, YC,&An, LJ.(2004).Molecular weight effects on the phase morphology of PS/P4VP blend films on homogeneous SAM and heterogeneous SAM/Au substrates.POLYMER,45(5),1637-1646. |
| MLA | Li, X,et al."Molecular weight effects on the phase morphology of PS/P4VP blend films on homogeneous SAM and heterogeneous SAM/Au substrates".POLYMER 45.5(2004):1637-1646. |
入库方式： OAI收割
来源：化学研究所
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