From the principle of maximum entropy, the radial distribution function of the end-to-end distance was deduced directly, and it is indicated that the function is Gauss-type function. 将自由结合链看成一个微观系统,应用最大熵原理推导出自由结合链末端距的径向分布函数,进而证明自由结合链的末端距符合高斯分布。
In this paper, fourth moment of end-to-end distance of polymethylene chains in the third-order interaction approximation is calculated. 计算聚亚甲基链的末端距四次矩,并同二级相互作用的结果进行了比较。
End-to-end Distance and its Probability Distribution of Polymer Chains near a Flat Barrier 平面壁限制的高分子链末端距及其概率分布
Evolutions of the mean square radius of gyration, the mean square end-to-end distance and the autocorrelation function of the end-to-end vector are simulated. 通过计算,研究了单链高分子的均方回转半径、均方末端距以及末端距向量自相关函数随时间的演化过程。
The result shows that when the polymer chain is equilibrium the ratio of the mean square end-to-end distance to the mean square radius of gyration is 6.23, which agrees well with the corresponding theoretical result. 结果显示,当高分子链处于平衡状态时,其均方末端距平均值与均方回转半径平均值的比值为6.23,与理论结果吻合较好。
The conformation of single polymer chain is studied by using an off-lattice Monte Carlo simulation, which involved the mean square radius of gyration and the mean square end-to-end distance of single polymer chain. 采用一种非格子MonteCarlo模拟方法对描述单链高分子链构象变化的2个物理量进行了数值模拟。
The simulation calculation of end-to-end distance and distribution moments for freely jointed chain s 自由旋转链末端距及其分布矩的模拟计算
Effect of Third-order Interaction Approximation on Fourth Moment of End-to-end Distance of Polymethylene Chains 三级相互作用对聚亚甲基链末端距四次矩的影响
The relationship between unperturbed mean-square end-to-end distance 0 and unperturbed mean-square radius of gyration 0 was established. The universal calibration of PCL/ THF system was justified and the Flory's characteristic ratio C ∞ was calculated. 计算并比较了无扰均方末端距0和无扰旋转半径0的关系。
However mean square radius of gyration, end-to-end distance, and expansion factor α_8, calculated from viscosity values according o Flory viscosity theory and Stockmayer-Fixman equation consisted with the literatures. 但是,由粘度数据按Flory粘度理论和Stockmayer-Fixman式计算的均方迥转半径,均方末端距以及扩张因子a(?)