超分子聚合物网络中的标度律
Scaling Laws in Supramolecular Polymer Networks.
作者信息
Xu Donghua, Craig Stephen L
机构信息
Department of Chemistry and Center for Biologically Inspired Materials and Material Systems, Duke University, Durham, North Carolina, 27708-0346.
出版信息
Macromolecules. 2011;44(13):5465-5472. doi: 10.1021/ma200096s.
Abstract
The linear rheological properties of networks formed by adding bis-Pd(II) cross-linkers to poly(4-vinylpyridine) (PVP) solution are examined, and the scaling law relationships between the zero shear viscosity (η(0)) of the networks versus the concentration of PVP solution (C(PVP)), the concentration of cross-linkers (C(X)), and the number density of elastically active chains (v(phantom)) are experimentally determined. The scaling law relationships are compared to the theoretical expectations of the Sticky Rouse and Sticky Reptation models (Macromolecules2001, 34, 1058-1068), and both qualitative and quantitative differences are observed.
摘要
研究了通过向聚（4-乙烯基吡啶）（PVP）溶液中添加双钯（II）交联剂形成的网络的线性流变特性，并通过实验确定了网络的零剪切粘度（η(0)）与PVP溶液浓度（C(PVP)）、交联剂浓度（C(X)）以及弹性活性链的数密度（v(phantom)）之间的标度律关系。将这些标度律关系与粘性Rouse模型和粘性爬行模型的理论预期（《大分子》2001年，第34卷，第1058 - 1068页）进行了比较，观察到了定性和定量上的差异。
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