化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (4) : 93-95.

新材料与新技术

聚丙烯胺衍生物自组装多层膜的制备及其阴离子传感应用研究

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Study on preparation of self-assembled multilayer film by PAH and their anion sensing application

Xi Haitao, Liu Gang, Cao Zheng, Liu Chunlin, Wu Dun, Cheng Junfeng

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摘要

聚丙烯胺盐酸盐(PAH)与2-[{[2-(2-吡啶基)肼基]硫代羰基}氨基]乙酸(化合物2)经酰胺反应制得聚丙烯胺衍生物(PAH-S)。由聚乙烯亚胺(PEI)、PAH-S与聚苯乙烯苯磺酸钠(PSS)通过层层自组装制备聚电解质多层膜(PEMs)。采用质量敏感的石英晶体微天平技术实时监控聚电解质(PE)的静电层层自组装吸附过程。在PAH与化合物2摩尔配合比为10∶2,PO^3-₄离子浓度达到10^-²mol条件下,频率降至150Hz,表明制得的PEMs对PO^3-₄具有吸附响应性。

Abstract

PAH-S was synthesized by covalently attaching 2-({(E)-Hydrazino [2-(2-pyridyl) hydrazino]methyl} amino) acetic acid (compound 2) to poly(allylamine hydrochloride)(PAH) via carbodiimide-assisted coupling reaction in water at room temperature.The resulting PAH-S was used to prepare polyelectrolyte multilayers (PEMs) in combination with polyethylene imine(PEI) and poly(sodium 4-styrene sulfonate)(PSS) via layer-by-layer deposition.The polyelectrolyte (PE) adsorption processes were monitored in real time by quartz crystal microbalance (QCM).When the molar ratio of PAH to compound 2 wes 10∶2 and the concentration of PO^3-₄ion reached 10^-²mol,the frequency decreased (150Hz),indicating that the prepared PEMs was adsorption responsive to PO^3-₄.

关键词

聚电解质多层膜 / 石英晶体微天平 / 阴离子 / 吸附

Key words

polyelectrolyte multilayer / quartz crystal microbalance / anion / adsorption

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聚丙烯胺衍生物自组装多层膜的制备及其阴离子传感应用研究[J]. 化工新型材料, 2019, 47(4): 93-95 DOI:

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