摘要
化学反应速率与化学反应进度是非常相似的概念和知识点,同时又密切相关。在宏观层面或者说表象层面上看,都描述了过程变化的程度,但二者确具有完全不同的性质,一个是动力学量、一个是热力学量;一个是微观性质、一个是宏观性质。通过甲基丙烯酸甲酯自由基聚合过程的分析,深入讨论和揭示反应速率与反应进度的内涵、意义,明确二者的辩证本质关系,以使学生进一步巩固如何提高聚合物产率、分子量等方面的理论知识,提高学生的学习能力,同时也促进在今后工作中的实践能力和创新能力的提高具有重要的意义。
Chemical reaction rate and chemical reaction progress are very similar concepts and knowledge, and closely related to each other at the same time. They describe the extent of change at a macro level or superficial level, but both have completely different nature, one is dynamic quantity, the other is thermodynamic quantity;one is microscopic property and the other is macroscopic property. By analyzing the free radical polymerization of methyl methacrylate(MMA), the connotation and significance of reaction rate and reaction progress were discussed, and the dialectically essential relationship between them was revealed too. Therefore, the work will make students further enhance theoretical knowledge on how to improve polymer yield, molecular weight, and promote the improvement of learning ability, moreover, it will be of great significance to improve students′ practical ability and innovative ability in future work.
作者
靳涛
彭若锦
张夏雨
JIN Tao;PENG Ruo-jin;ZHANG Xia-yu(School of Environmental Science and Engineering,Shandong Agriculture and Engineering University,SAEU,Jinan 250100,China;College of Material Science and Engineering,SUST,Qingdao 266590,China;College of Material Science and Engineering,YNU,Fuling 408100,China)
出处
《高分子通报》
CAS
CSCD
北大核心
2021年第2期97-101,共5页
Polymer Bulletin
基金
山东省名校工程建设项目(10424)
材料学院教改项目(CLJG201704)。
关键词
反应进度
反应速率
甲基丙烯酸甲酯自由基聚合
Reaction rate
Reaction progress
Methyl methacrylate free radical polymerization
