荧光和羟基修饰聚天冬氨酸的制备与阻垢性能——推荐一个综合化学实验

Preparation and Antiscalant Properties of Fluorescent and Hydroxyl?Modified Polyaspartic Acid:A Recommended Comprehensive Chemistry Experiment

设计了荧光和羟基修饰聚天冬氨酸的制备、表征和阻垢性能的综合实验。首先合成了水溶性荧光物质和聚琥珀酰亚胺(PSI),然后用该荧光物质和乙醇胺修饰PSI并碱性水解,获得目标阻垢剂。用1H NMR、凝胶渗透色谱和荧光分光光度计表征该阻垢剂,并通过静态阻垢试验测试该阻垢剂的阻垢性能。本实验融合了高分子化学、有机化学和分析化学内容,体现了“合成–表征–分析”的科学研究过程,强调了“物质–结构–性能”的科研思维模式,可以培养学生的实验素养和科研能力。

A comprehensive experiment was devised focusing on the preparation,characterization,and antiscalant performance of fluorescent and hydroxy-modified polyaspartic acid.Initially,a water-soluble fluorescent material and polysuccinimide(PSI)were synthesized.The PSI was then modified using the fluorescent material and ethanolamine,followed by alkaline hydrolysis to obtain the target antiscalant.The antiscalant was characterized using 1H NMR,gel permeation chromatography,and fluorescence spectrophotometry,and its antiscalant efficacy was evaluated through static scaling tests.This experiment integrates concepts from polymer chemistry,organic chemistry,and analytical chemistry,embodying the scientific research process of“synthesis-characterization-analysis”.It emphasizes the research thinking model of“substance-structure-property”,aiming to cultivate students’experimental proficiency and research capabilities.