高分子表(界)面吸附中的单分子动态学图景教学
Single Molecule Dynamics Teaching in Polymer Surface(Interface)Adsorption
程冬炳 1沈雷1
作者信息
- 1. 武汉理工大学化学化工与生命科学学院艾克斯马赛学院,武汉 430070
- 折叠
摘要
"高分子表(界)面吸附"是《高分子物理》中聚合物表面与界面章节的重要组成部分,其研究关乎高分子复合材料制备、胶体稳定、废水处理、生命体系等诸多涉及大分子在表(界)面上吸附的领域,具有重要理论与实际意义.为提高本科生对高分子表(界)面吸附现象的认知,本文提出从单分子层面入手,通过展示科研中观察到的高分子单链在表(界)面上的二维扩散运动图景,引入生动实例,阐述其"吸附-扩散-脱附"动态学模型,帮助学生厘清"高分子表(界)面吸附"过程的微观分子机制,突出传统教学中缺乏的动态学思维,培养学生正确的世界观和方法论,这对学生运用正确的高分子物理学科思维解决高分子相关实际问题十分必要.
Abstract
"Polymer surface(interface)adsorption"is an important component of the polymer surface and interface chapter in Polymer Physics teaching.It is related to the preparation of polymer composite materials,colloid stability,wastewater treatment,life systems,and many other fields involving the adsorption of macromolecules on the surface(interface),with important theoretical and practical significance.In order to improve undergraduate students'understanding of the phenomenon of polymer surface(interface)adsorption,this article proposes to start from the single molecule level and display the two-dimensional diffusion motion of polymer single chains on the surface(interface)observed in scientific research.By introducing vivid examples,the"adsorption-diffusion-desorption"dynamic model is explained to help students clarify the molecular mechanism of the"polymer surface(interface)adsorption"process.It is essential for students to apply correct thinking in polymer physics to solve practical problems related to polymers by compensating for the lack of dynamic thinking in the learning process,highlighting the philosophical thinking of the movement of all things,and cultivating correct worldviews and methodologies.
关键词
高分子表(界)面吸附/动态学/单分子示踪Key words
Polymer surface(interface)adsorption/Dynamics/Single molecule tracking引用本文复制引用
出版年
2024
NETL
NSTL
万方数据