大学化学2025，Vol.40Issue(4)：131-137,7.DOI:10.12461/PKU.DXHX202408125
采用过程再现教学方法讲解聚合物共混物分相机理
Teaching Phase Separation Mechanism in Polymer Blends Using Process Representation Teaching Method:A Teaching Design for Challenging Theoretical Concepts in"Polymer Structure and Properties"Course
摘要
Abstract
Phase separation in polymer blends is a crucial method for polymer modification,which is covered in the course"Polymer Structure and Properties".Different phase separation mechanisms result in distinct phase-separated structures,ultimately leading to various material properties.Understanding these mechanisms is essential yet challenging for students due to their abstract nature,making it a key focus in theoretical teaching.Based on years of teaching experience and research findings,we developed a process reproduction teaching method that demonstrates how phase diagrams of polymer blends are obtained.The teaching approach begins with basic binary mixture thermodynamics,then progresses to explaining thermodynamic behaviors of endothermic and exothermic binary systems at both low and high temperatures.Finally,it addresses complex binary blend thermodynamics and phase diagram construction.Using these phase diagrams,we explain two types of phase separation mechanisms under different compositions and temperatures.This teaching method has effectively helped students understand phase separation mechanisms,with some students successfully applying this knowledge to enhance ionic liquid gels.关键词
高聚物结构与性能/共混物分相机理/过程再现教学方法Key words
Structure and properties of polymer/Phase separation mechanism of polymer blends/Process representation teaching method分类
教育学引用本文复制引用
姚东东,顾军渭,闫毅,张军亮,郑亚萍..采用过程再现教学方法讲解聚合物共混物分相机理[J].大学化学,2025,40(4):131-137,7.基金项目
2022年研究生"课程思政"示范课程 （）
2022年西北工业大学基础前沿课程建设项目 （）
2024年度西北工业大学教育教学改革研究项目(24GZ11359) （24GZ11359）
西北工业大学教育教学改革研究项目(2024JGWZ07,2023JGZ20) （2024JGWZ07,2023JGZ20）
教育部产学合作协同育人项目 （）
研究生教育研究基金项目(2023YMs018) （2023YMs018）
研究生教育综合改革发展创新项目(KCJG202408) （KCJG202408）
