大学化学 >> 2021, Vol. 36 >> Issue (2): 1912023.doi: 10.3866/PKU.DXHX201912023

化学实验 上一篇    下一篇

温度响应高分子微凝胶的水相制备与表征——介绍一个大学化学综合实验

张来英(), 兰如月, 刘志红, 吴伟泰()   

  • 收稿日期:2019-12-06 录用日期:2019-12-26 发布日期:2020-02-15
  • 通讯作者: 张来英,吴伟泰 E-mail:wuzhly@xmu.edu.cn;wuwtxmu@xmu.edu.cn
  • 作者简介:Email: wuwtxmu@xmu.edu.cn (吴伟泰)
    Email: wuzhly@xmu.edu.cn (张来英)
  • 基金资助:
    国家基础科学人才培养基金项目(J1310024);2017年厦门大学教学改革研究项目(JG20170222);国家自然科学基金项目(21574107);国家自然科学基金项目(21774105)

Aqueous Synthesis and Characterization of Temperature-Responsive Polymer Microgels: An Introduction of a Comprehensive Chemical Experiment

Laiying Zhang(), Ruyue Lan, Zhihong Liu, Weitai Wu()   

  • Received:2019-12-06 Accepted:2019-12-26 Published:2020-02-15
  • Contact: Laiying Zhang,Weitai Wu E-mail:wuzhly@xmu.edu.cn;wuwtxmu@xmu.edu.cn

摘要:

介绍一个涵盖高分子化学、物理化学与仪器分析等学科的综合实验。本实验选择有温度响应的聚(N-异丙基丙烯酰胺)(pNIPAM)作为合成与研究对象,在水相中通过异相单体聚合法制备pNIPAM微凝胶,从宏观和微观两个角度探究微凝胶的温度响应特性。本综合实验取材于广受关注且已有较多验证的研究前沿成果,有助于培养学生理论联系实验、学以致用的思维,锻炼学生学科交叉融合意识。

关键词: 温度响应, 高分子微凝胶, 制备与表征, 综合实验

Abstract:

This study illustrates a comprehensive experiment covering polymer chemistry, physical chemistry and instrumental analysis. In this experiment, the temperature-responsive poly(N-isopropylacrylamide) (pNIPAM) microgels are synthesized and characterized. The PNIPAM microgels are prepared by free-radical precipitation polymerization in aqueous phase. The temperature responsive properties of PNIPAM microgels were explored from two aspects, macroscopic and microscopic. This comprehensive experiment is based on the research of cutting-edge topics, which is helpful to cultivate students' ability of integrating theory with experiment and applying knowledge to practice, as well as to train students' awareness of interdisciplinary integration.

Key words: Temperature response, Polymer microgel, Preparation and characterization, Comprehensive experiment

MSC2000: 

  • G64