宏观非平衡超分子自组装综合实验

doi:10.3866/PKU.DXHX202305057

Abstract

Abstract:

In order to enable undergraduate students majoring in chemistry and related fields to understand the basic characteristics of hydrogel materials and their applications in macroscopic non-equilibrium supramolecular self-assembly, we have introduced a comprehensive research-oriented experiment titled "Macroscopic Non-equilibrium Supramolecular Self-Assembly Experiment". This experiment mainly includes the preparation method of polyelectrolyte hydrogels based on homogeneous free radical polymerization, the construction method of macroscopic non-equilibrium supramolecular self-assembly system based on urea-urease timing reaction, characterization of assembly performance, and exploration of the mechanisms of non-equilibrium assembly and disassembly. Through the practice of this experiment, students can deepen their understanding of supramolecular interactions, master the preparation and characterization methods of relevant polymer hydrogels, as well as consolidate the use of some commonly used instruments. By combining teaching and practice, we establish a bridge between teaching and scientific research to broaden students' scientific perspectives, stimulate their research interests, and cultivate students' innovative abilities and scientific thinking.

Key words: Supramolecular interactions, Non-equilibrium assembly, Polyelectrolyte hydrogels, Urease, Comprehensive chemical experiment

Ting Zhao, Panpan Li, Xu Wang. Comprehensive Chemical Experiment of Macroscopic Non-Equilibrium Supramolecular Self-Assembly[J].University Chemistry, 2024, 39(1): 126-133.

Figures/Tables 11

References 24

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仪器名称	型号	厂家
多功能台式摇床	HT-X330GB	上海沪析
偏光显微镜	MP41	广州明美光电技术
质构分析仪	TMS-PRO	济南睿谟商贸
pH计	START3100	美国奥豪斯

试剂名称	纯度	生产厂家
丙烯酰胺	分析纯	上海阿拉丁生化科技股份有限公司
N, N'-亚甲基双丙烯酰胺	分析纯	上海阿拉丁生化科技股份有限公司
脲酶	15000–50000 U∙g⁻¹	西格玛奥德里奇(上海)贸易有限公司
对苯乙烯磺酸钠	分析纯	上海阿拉丁生化科技股份有限公司
尿素	分析纯	国药集团化学试剂有限公司
四乙烯基吡啶	分析纯	上海阿拉丁生化科技股份有限公司
过硫酸铵	分析纯	上海阿拉丁生化科技股份有限公司
炭黑	分析纯	国药集团化学试剂有限公司
N, N, N', N'-四甲基乙二胺	99%	上海阿拉丁生化科技股份有限公司
O-甲基丙烯酸荧光素酯	95%	西格玛奥德里奇(上海)贸易有限公司
柠檬酸，一水	分析纯	国药集团化学试剂有限公司
二水合柠檬酸三钠	分析纯	国药集团化学试剂有限公司

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Comprehensive Chemical Experiment of Macroscopic Non-Equilibrium Supramolecular Self-Assembly

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