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首页> 外文期刊>Journal of Physics. Condensed Matter >The effect of cross-link distributions in axially-ordered, cross-linked networks
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The effect of cross-link distributions in axially-ordered, cross-linked networks

机译：交联分布在轴向有序交联网络中的影响

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摘要

Cross-linking between the constituent chains of biopolymers has a marked effect on their materials' properties. In certain of these materials, such as fibrillar collagen, increases in cross-linking lead to an increase in the melting temperature. Fibrillar collagen is an axially-ordered network of cross-linked polymer chains exhibiting a broadened denaturation transition, which has been explained in terms of the successive denaturation with temperature of multiple species. We model axially-ordered, cross-linked materials as stiff chains with distinct arrangements of cross-link-forming sites. Simulations suggest that systems composed of chains with identical arrangements of cross-link-forming sites exhibit critical behavior. In contrast, systems composed of non-identical chains undergo a crossover. This model suggests that the arrangement of cross-link-forming sites may contribute to the broadening of the denaturation transition in fibrillar collagen.
机译：生物聚合物的组成链之间的交联对其材料的性能有显着影响。在某些这些材料中，例如原纤维胶原蛋白，交联的增加导致熔化温度的增加。纤维状胶原蛋白是交联的聚合物链的轴向排列的网络，其表现出变宽的变性转变，这已经根据多种物质的温度连续变性进行了解释。我们将轴向排序的交联材料建模为具有不同交联形成部位排列的刚性链。模拟表明，由具有相同交联形成位点排列的链组成的系统表现出关键行为。相反，由不同链组成的系统会发生交叉。该模型表明交联形成位点的排列可能有助于原纤维胶原的变性转变的加宽。

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