论文标题
原始链网络模拟中随机交联网络的弹性
Elasticity of randomly cross-linked networks in primitive chain network simulations
论文作者
论文摘要
进行了原始的链网络模拟，用于随机交联的滑移网络。对于渗透网络，将应力 - 应变关系与Ball等人的理论进行了比较。 [Polymer，22，1010（1981）]和Rubinstein和Panyukov [Macromolecules，35，6670（2002）]。鉴于交联和滑移链接的贡献用作拟合参数，这两种理论都合理地重现了仿真结果。但是，这些参数是模型依赖性的。此外，如果从渗透网络中涉及的活动链接数确定参数的数量，这些理论将无法描述仿真结果。这些结果表明，除非网络仅由高斯链组成，否则实验数据与理论的拟合不会提供系统中的一小部分纠缠，并且正确达到了自由能的最小值。
Primitive chain network simulations for randomly cross-linked slip-link networks were performed. For the percolated networks, the stress-strain relationship was compared to the theories by Ball et al. [Polymer, 22, 1010 (1981)] and Rubinstein and Panyukov [Macromolecules, 35, 6670 (2002)]. The simulation results were reasonably reproduced by both theories, given that the contributions from cross-links and slip-links were used as fitting parameters. However, these parameters were model dependent. Besides, the theories cannot describe the simulation results if the parameters were determined from the number of active links involved in the percolated networks. These results reveal that the fitting of experimental data to the theories does not provide a fraction of entanglements in the system unless the network only consists of Gaussian strands and it correctly reaches the state of free-energy minimum.
