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重氮树脂基磁性超薄膜及其图形化
引用本文:赵楠,鲁从华,曹维孝.重氮树脂基磁性超薄膜及其图形化[J].高分子学报,2004(3):458-461.
作者姓名:赵楠  鲁从华  曹维孝
作者单位:北京大学化学与分子工程学院,北京,100871
基金项目:国家自然科学基金资助项目 (基金号 5 0 173 0 0 2,2 0 2 740 0 2 )
摘    要:构建磁性薄膜,在磁性理论和应用技术上都有重要意义.通过磁性膜的研究,能揭示磁性机制,对界面磁性、维度磁性、磁性的藕合特征、磁性量子效应等建立新的认识.磁性膜还提供一种新的人造磁性材料,在信息储存、磁性图像、医学等方面有潜在应用.目前,形成磁性薄膜的技术主要有溅射(Sputtering)、分子外延性生长(Molecular beam epitaxy)、真空喷镀、电泳、脉冲激光沉积、Langmuir-Blodgett(LB)沉积、层层组装(LBL)等方法.

关 键 词:Fe3O4纳米微粒  重氮树脂  磁性超薄膜  图案化
修稿时间:2003年11月11

MAGNETIC ULTRATHIN FILM AND PATTERNING
ZHAO Nan,LU Conghua,CAO Weixiao.MAGNETIC ULTRATHIN FILM AND PATTERNING[J].Acta Polymerica Sinica,2004(3):458-461.
Authors:ZHAO Nan  LU Conghua  CAO Weixiao
Abstract:Magnetic ultrathin films were fabricated layer-by-layer using a self-assembly method through the electrostatic interaction between the photosensitive diazoresin (DR) and the negatively charged Fe 3O 4 nanoparticles (NP-Fe 3O 4).The results of the UV-vis spectra and AFM show that the assembly of DR and NP-Fe 3O 4 is very successful.After UV irradiation,the ionic bonds of the DR/NP-Fe 3O 4 film convert to covalent ones and the magnetic films become very stable toward polar solvents.The magnetic film images with good resolution are obtained by means of selective UV-exposure of the film under a photo-mask and then developing the exposed film in the saturated aqueous solution of sodium dodecyl sulfate (SDS) and cetyl trimethyl ammonium bromide (CTAB),respectively.
Keywords:Fe  3O  4 nanoparticle  Diazoresin  Magnetic ultrathin film  Patterning  
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