Preparation of nanoporous polyimide thin films via layer-by-layer self-assembly of cowpea mosaic virus and poly(amic acid)

	Preparation of nanoporous polyimide thin films via layer-by-layer self-assembly of cowpea mosaic virus and poly(amic acid)
	Peng B ; Wu GJ ; Lin Y ; Wang Q ; Su ZH
刊名	thin solid films
	2011
卷号	519 期号:22 页码:7712-7716
关键词	POLYHEDRAL OLIGOMERIC SILSESQUIOXANE DIELECTRIC-CONSTANT MATERIALS POLYELECTROLYTE FILMS NANOCOMPOSITES ULTRATHIN MICROELECTRONICS BLOCKS
ISSN号	0040-6090
通讯作者	su zh
中文摘要	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.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000295057000016
公开日期	2012-06-08
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/44369]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Peng B,Wu GJ,Lin Y,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 B,Wu GJ,Lin Y,Wang Q,&Su ZH.(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 B,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.