首页 | 本学科首页   官方微博 | 高级检索  
     

Emergent Property in Macromolecular Motion
引用本文:吴嘉麟. Emergent Property in Macromolecular Motion[J]. 东华大学学报(英文版), 2003, 20(2)
作者姓名:吴嘉麟
作者单位:State Key
摘    要:In this paper, the model of inverse cascade fractal super-blocks along one direction (in the positive or negative) in the 3-dimensional space is developed to describe the self-similar motion in macromolecular system. Microscopically the cohesive and dispersed states of the motion blocks are co- existent states with vastly different probability of occurrence. Experimental results and theoretical analysis show that the microscopic cohesive state energy and dispersed state energy of each motion block are respectively equal to the macroscopic glassy state energy kTg and molten state energy kTm of the system. This singularity unveils topologically the non-integrability, mathematically the anholonomy, and macroscopically the emergent property. This singularity also reveals that the glass, viscoelastic and melt states are three distinct emergent properties of macromolecular motion from a macroscopic viewpoint. The fractal concept of excluded volume is introduced to depict the random motion at various scales in


Emergent Property in Macromolecular Motion
WU Jia-Lin State Key Laboratory for Fibers and Polymer Materials,Donghua University,Shanghai ,China. Emergent Property in Macromolecular Motion[J]. Journal of Donghua University, 2003, 20(2)
Authors:WU Jia-Lin State Key Laboratory for Fibers  Polymer Materials  Donghua University  Shanghai   China
Affiliation:State Key laboratory for Fibers and Polyner Materials, Donghua University, Shanghai 200051, China
Abstract:In this paper, the model of inverse cascade fractal super-blocks along one direction (in the positive or negative) in the 3-dimensional space is developed to describe the self-similar motion in macromolecular system. Microscopically the cohesive and dispersed states of the motion blocks are co- existent states with vastly different probability of occurrence. Experimental results and theoretical analysis show that the microscopic cohesive state energy and dispersed state energy of each motion block are respectively equal to the macroscopic glassy state energy kTg and molten state energy kTm of the system. This singularity unveils topologically the non-integrability, mathematically the anholonomy, and macroscopically the emergent property. This singularity also reveals that the glass, viscoelastic and melt states are three distinct emergent properties of macromolecular motion from a macroscopic viewpoint. The fractal concept of excluded volume is introduced to depict the random motion at various scales in the system. The Hausdorf f dimensions of the excluded volume and the motion blocks are both found equal to 3/2.
Keywords:emergent property   macromolecular motion   glass transition   fractal dimension
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号