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化学学报
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化学学报 ›› 2002, Vol. 60 ›› Issue (7): 1192-1196. 上一篇    下一篇

研究论文

聚乙烯咔唑/杂多阴离子杂化LB膜的制备、结构与光电性质

柳士忠;柳利;李建平;何平;杜祖亮;胡振纲   

  1. 湖北大学化学与材料科学学院,武汉(430062);河南大学固体表面实验室,开封 (475001)
  • 发布日期:2002-07-15

Preparation, Structure and Photo-Electric Properties of Hybrid Polyvinylcarbazole/Heteropolyanions LB Films

Liu Shizhong;Liu Li;Li Jianping;He Ping;Du Zuliang;Hu Zhengang   

  1. Faculty of Chemistry and Material Science, Hubei University,Wuhan (430062);Laboratory of Solid Surface, Henan University,Kaifeng(475001)
  • Published:2002-07-15

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555

被引次数

16 | 5

首次选用聚乙烯咔唑（PVK）、二十二烷酸（BA）与杂多阴离子用LB技术制备 了五种有机/无机杂化LB膜，PVK/BA/HPC（HPC = Na_5(PZ(H_2O)Mo_(11)O_(39)]· 5H_2O, Z = Mn, Co, Cu, Zn, Ni）。用原子力显微镜（AFM），UV-vis，小角X射 线衍射（LAXRD），表面光电压谱（SPS），荧光光谱等对LB膜的结构与性质进行了 表征。结果表明：它们在空气/水界面有好的成膜性能，崩溃压为22 ～27 mN/m， 杂多阴离子作为一个单层夹在PVK和BA双层之间。PVK/BA/HPC LB膜的光致发光具有 PVK激基缔合物的特征荧光，其光电压谱有较强的光电响应。

关键词: 聚乙烯, 咔唑 P, 原子力显微镜, LB膜, 结构表征

LB films of five new hybrid polyvinylcarbazole/heteropolyanions PVK/BA/HPC (HPC = Na_5-[PZ(H_2O)Mo_(11)O_(39)]·5H_2O, Z = Mn, Co, Cu, Zn, Ni) were prepared and characterized by π-A isotherms, UV-vis absorption spectroscopy, low-angle X-ray diffraction (LAXRD), atomic force microscope (AFM), surface photovoltage spectroscopy (SPS) and fluorescence spectroscopy. The experimental results indicate that they have good film-forming property on the air-water interface. The collapse pressure of LB film is 22～27 mN/m. The lamellar structure obtained consists of monolayers of the heteropolyanions sandwiched between bilayers of the PVK macromolecule and BA. The fluorescence spectra shoed that strong emission of PVK appeared in the films. The title LB films also have stronger photoelectric response.

Key words: POLYETHYLENE, CARBAZOLE P, AFM, LB FILM, STRUCTURE CHARACTERISTICS

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