十八胺/杂多阴离子杂化LB膜的制备与表征 |
Preparation and Characterization of Hybrid Octadecylammonium/Heteropolyanions LB Films |
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摘要: 采用界面吸附法制备了5种十八胺/杂多阴离子杂化LB膜ODA/HPA(HPA=PW12,PMo12,PW6Mo6,PW9Mo3,P2Mo18)。对5种配合物在空气/水界面上单分子膜的行为进行了研究。它们有较高的崩溃压46.0~48.0mN·m-1,均能形成稳定的单分子膜。用红外光谱,紫外光谱,小角X射线衍射(LXRD)和荧光光谱对LB膜的沉积特性与结构进行了鉴定。结果表明,制备的LB膜具有中心对称性,其层状结构由杂多阴离子单层与表面活性剂双层交替组成。 |
关键词: 十八胺 杂多阴离子 单层 Langmuir-Blodgett膜 层状结构 |
基金项目: 国家自然科学基金资助项目(No.29671011,29971010);湖北省自然科学基金(96J035,99J066)资助课题. |
Abstract: LB films of five new hybrid octadecylammonium/heteropolyanions ODA/HPA(HPA=PW12, PMo12, PW6Mo6, PW9Mo3, P2Mo18) were prepared and characterized by π-A isotherms, FT-IR spectra, UV-Vis absorption spectra, Low-angle X-ray diffraction(LAXD) and fluorescence spectra. The results show that they have good film-forming property, on the air/water interface. The collapse pressure is 46.0~48.0mN· m-1, the monolayer and multilayer thus prepared have good stability. The lamellar structure so obtained consists of monolayers of the heteropolyanions alternating with bilayers of the organic surfactant(centrosymmetric LB film). |
Keywords: octadecylammonium heteropolyanion monolayer LB film lamellar structrae |
投稿时间:2000-07-24 修订日期:2000-11-27 |
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柳士忠,张贞文,王俊,杜祖亮,戴树玺.十八胺/杂多阴离子杂化LB膜的制备与表征[J].无机化学学报,2001,17(1):96-100. |
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