A Quasi-Lattice Model of Amorphous Polymers

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概要

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• A quasi-lattice model of amorphous polymers is used in order to interpret the (equilibrium) thermodynamic properties as well as the transitional behavior. Each monomer unit of the molecular chain is treated as having two point centers of interaction. Chain lattice energy is obtained by summing up the pair interactions between these binary units; they interact with the Lennard-Jones potential. A critical temperature T_c corresponding to the Gibbs' second-order transition temperature T_2 is newly introduced with proper consideration for the "smearing out effect" of interchain potential field. A WLF-type equation is deduced in a way analogous to that of Adam and Gibbs. Comparing it with the empirical equation, T_c and ?C_p (the difference of specific heat between equilibrium melt and glass at T_g) are evaluated. The theoretical relations of internal pressure and isothermal compressibility are also obtained; the results nearly agree with available experimental data.

• 社団法人応用物理学会の論文
• 1969-11-05

著者

• Ishikawa Kinzo

  Department Of Polymer And Textile Engineering Tokyo Institute Of Technology

• ISHINABE Takao

  Department of Textile Engineering, Tokyo Institute of Technology

• Ishinabe Takao

  Department Of Polymer And Textile Engineering Tokyo Institute Of Technology

関連論文

• Thermal Expansion and Compressibility of Amorphous Polymers
• Volume Viscoelasticity of Amorphous Polymers. II.
• Volume Viscoelasticity of Amorphous Polymers
• A Quasi-Lattice Model of Amorphous Polymers

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