CN1316644A - 手性纳米孔材料修饰电极 - Google Patents

手性纳米孔材料修饰电极 Download PDF

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CN1316644A
CN1316644A CN 01101407 CN01101407A CN1316644A CN 1316644 A CN1316644 A CN 1316644A CN 01101407 CN01101407 CN 01101407 CN 01101407 A CN01101407 A CN 01101407A CN 1316644 A CN1316644 A CN 1316644A
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pores
electrode modified
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electrode
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CN1200275C (zh
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贲腾
陈春海
王策
吴忠文
张万金
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Jilin University
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Jilin University
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Abstract

本发明属于手性纳米孔材料修饰电极的制备技术。它是通过在电极表面沉积单层，两层以至多层的手性纳米孔分子，得到功能化的修饰电极。

Description

手性纳米孔材料修饰电极
本发明属于通过手性纳米孔材料修饰电极的制备技术。
近十年来，为了避免耐高温高分子材料加工温度高、熔体粘度大的缺点，材料学家们研制和开发了一系列刚性环状齐聚物。如环状聚芳醚酮、环状聚芳醚砜、环状聚苯硫醚等。但是早期，人们主要把含有刚性链断的环状齐聚物(RCO)作为结构材料研究。1993年，Miyashita等发现，含有近似刚性的酰胺键的手性环状二苯胺齐聚物具有同经典双亲性分子相似的双亲性，可以获得手性LB(Langmuir-Blodgett)膜。近来我们合成了一系列直径可控的，含有不同活性功能基团的RCO。发现RCO是一类潜力巨大的有机纳米功能材料，其具有以下五个方面的独特性质：(1)RCO的纳米空穴直径稳定；(2)RCO的纳米空穴直径可控(3)RCO具有优异的热稳定性(4)易于将活性功能团引入RCO中，赋予其功能性(5)RCO是一类不同于经典LB分子的双亲性分子。
自从1988年Lehn一篇著名的《分子，超分子和分子器件的范畴与展望》发表后，以研究分子间相互作用及其应用为主的超分子和分子器件的研究得到更快发展。其中的一个分支——“分子识别”已经成为当代化学的一个显著的领域。所谓分子识别是指对于给定的受体分子，通过键合以及选择对底物进行表达的过程，同时也是一种功能。它不仅作为基础概念以理解生物体系的功能性，而且提供了发展新型功能材料的钥匙。有序的单层，双层以至多层分子层提供了与不同的底物分子相互作用环境，也就是分子识别的环境。手性分子的识别一直是研究的热点，也是难点。
我们研究组发现以含手性基元的环状齐聚物为代表的手性纳米孔材料如手性环状聚芳醚酮、手性环状聚芳醚砜、手性环状聚苯硫醚、手性环状聚醚酯。可以在气/液界面上扩展成二维有序单分子膜并转移到固体面形成单层手性LB膜。其功能由其纳米范围的手性孔穴体现出来。
我们采用手性有机纳米孔材料修饰电极，可以应用在手性识别等方面。
手性纳米孔材料修饰电极的方法为：将手性纳米孔材料在15-35℃下溶解在氯仿溶液中，在膜天平上的气/液界面上铺展一层单分子膜，然后在表面压力为π＝2-25mN/m(其中π＝4-6mN/m最好)时转移到电极表面，垂直铺膜速率为：3-25mm/min(一般控制在5-15mm/min)可以转移一层，重复铺膜过程得到两层以至多层。从而得到手性纳米孔材料修饰电极。
实施例一手性环状聚醚酮分子配成5×10-4ML-1氯仿溶液。温度为20℃在膜天平上铺展单分子膜。在电极表面沉积LB膜，沉积压为5mN/m，垂直铺膜速率为20mm/min。沉积一层单分子膜。即为手性纳米孔材料的修饰电极。
实施例二
方法如实施例一，将手性环状聚醚酮分子改为手性环状聚醚砜分子。结果同实施例一。
实施例三
方法如实施例一，将手性环状聚醚酮分子改为手性环状聚苯硫醚分子。结果同实施例一。
实施例四
方法如实施例一，将手性环状聚醚酮分子改为手性环状聚醚酯分子。结果同实施例一。
实施例五
方法如实施例一，将沉积压改为25mN/m。结果同实施例一。
实施例六
方法如实施例一，将铺膜速率改为5mm/min。结果同实施例一。
实施例七
方法如实施例一，将沉积分子的层数改为两层。结果同实施例一。
实施例八
方法如实施例一，将沉积分子的层数改为多层。结果同实施例一。

Claims (4)

1.一种手性纳米孔材料修饰电极的制备方法，其特征在于使用手性纳米孔材料在15-35℃下，在膜天平上铺展单层膜，表面压力为π＝2-25mN/m时转移到电极表面，垂直铺膜速率为3-25mm/min时，可以转移一层，重复铺膜过程得到两层以至多层。从而得到手性纳米孔材料修饰电极。
2.如权利要求1所述的手性纳米孔材料修饰电极的制备方法，其特征在于手性纳米孔材料选用手性环状聚醚酮、手性环状聚醚砜、手性环状聚苯硫醚、手性环状聚醚酯。
3.如权利要求1所述的手性纳米孔材料修饰电极的制备方法，其特征在于表面压力为π＝4-6mN/m。
4.如权利要求1所述的手性纳米孔材料修饰电极的制备方法，其特征在于垂直铺膜速率为5-15mm/min。
CN 01101407 2001-01-12 2001-01-12 手性纳米孔材料修饰电极 Expired - Fee Related CN1200275C (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100427941C (zh) * 2006-04-06 2008-10-22 复旦大学 一种基于牛血清白蛋白的手性传感器及其制备方法
CN100439914C (zh) * 2006-04-06 2008-12-03 复旦大学 一种检测手性异构体的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100427941C (zh) * 2006-04-06 2008-10-22 复旦大学 一种基于牛血清白蛋白的手性传感器及其制备方法
CN100439914C (zh) * 2006-04-06 2008-12-03 复旦大学 一种检测手性异构体的方法

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