Preparation of nanoporous polyimide thin films via layer-by-layer self-assembly of cowpea mosaic virus and poly(amic acid)
文献类型：期刊论文
| 作者 | Peng, Bo1; Wu, Guojun1; Lin, Yuan1; Wang, Qian2; Su, Zhaohui1 |
| 刊名 | THIN SOLID FILMS
 |
| 出版日期 | 2011-09-01 |
| 卷号 | 519期号:22页码:7712-7716 |
| 关键词 | Multilayers Self-assembly Dielectric Constants Cowpea Mosaic Virus Polyimides |
| ISSN号 | 0040-6090 |
| DOI | 10.1016/j.tsf.2011.05.047 |
| 英文摘要 | Low dielectric (low-kappa) materials are of key importance for the performance of microchips. In this study, we show that nanosized cowpea mosaic virus (CPMV) particles can be assembled with poly(amic acid) (PM) in aqueous solutions via the layer-by-layer technique. Then, upon thermal treatment CPMV particles are removed and PM is converted into polyimide in one step, resulting in a porous low-kappa polyimide film. The multilayer self-assembly process was monitored by quartz crystal microbalance and UV-Vis spectroscopy. Imidization and the removal of the CPMV template was confirmed by Fourier transform infrared spectroscopy and atomic force microscopy respectively. The dielectric constant of the nanoporous polyimide film thus prepared was 2.32 compared to 3.40 for the corresponding neat polyimide. This work affords a facile approach to fabrication of low-kappa polyimide ultrathin films with tunable thickness and dielectric constant. (C) 2011 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000295057000016 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/72489]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Su, Zhaohui |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 2.Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA |
| 推荐引用方式 GB/T 7714 | Peng, Bo,Wu, Guojun,Lin, Yuan,et al. Preparation of nanoporous polyimide thin films via layer-by-layer self-assembly of cowpea mosaic virus and poly(amic acid)[J]. THIN SOLID FILMS,2011,519(22):7712-7716. |
| APA | Peng, Bo,Wu, Guojun,Lin, Yuan,Wang, Qian,&Su, Zhaohui.(2011).Preparation of nanoporous polyimide thin films via layer-by-layer self-assembly of cowpea mosaic virus and poly(amic acid).THIN SOLID FILMS,519(22),7712-7716. |
| MLA | Peng, Bo,et al."Preparation of nanoporous polyimide thin films via layer-by-layer self-assembly of cowpea mosaic virus and poly(amic acid)".THIN SOLID FILMS 519.22(2011):7712-7716. |
入库方式： OAI收割
来源：化学研究所
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