Jurjiu Aurel, Biter Teodor-Lucian, Turcu Flaviu
Faculty of Physics, Babes-Bolyai University, Street Mihail Kogalniceanu 1, 400084 Cluj-Napoca, Romania.
Polymers (Basel). 2017 Jun 24;9(7):245. doi: 10.3390/polym9070245.
In this paper we focus on the relaxation dynamics of a multihierarchical polymer network built through the replication of the dual Sierpinski gasket in the form of a regular dendrimer. The relaxation dynamics of this multihierarchical structure is investigated in the framework of the generalized Gaussian structure model using both Rouse and Zimm approaches. In the Rouse-type approach, we show a method whereby the whole eigenvalue spectrum of the connectivity matrix of the multihierarchical structure can be determined iteratively, thereby rendering possible the analysis of the Rouse-dynamics at very large generations. Remarkably, the general picture that emerges from both approaches, even though we have a mixed growth algorithm and the monomers interactions are taken into account specifically to the adopted approach, is that the multihierarchical structure preserves the individual relaxation behaviors of its constituent components. The theoretical findings with respect to the splitting of the intermediate domain of the relaxation quantities are well supported by experimental results.
在本文中,我们关注通过以规则树枝状大分子形式复制双谢尔宾斯基垫片构建的多尺度聚合物网络的弛豫动力学。在广义高斯结构模型的框架内,使用劳斯(Rouse)和齐姆(Zimm)方法研究了这种多尺度结构的弛豫动力学。在劳斯型方法中,我们展示了一种方法,通过该方法可以迭代确定多尺度结构连接矩阵的整个特征值谱,从而使得在非常大的代数下对劳斯动力学进行分析成为可能。值得注意的是,尽管我们采用了混合生长算法并且针对所采用的方法专门考虑了单体相互作用,但从这两种方法中得出的总体情况是,多尺度结构保留了其组成部分的个体弛豫行为。关于弛豫量中间域分裂的理论发现得到了实验结果的有力支持。