Several possible conformational states of a homogeneous elastic polymeric chain
Several possible conformational states of a homogeneous elastic polymeric chain
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均质弹性聚合物链的几种可能的构象状态
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发表时间：
1979
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通讯作者：
Grosberg AIu
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作者：
Grosberg AIu
考虑均质弹性高分子，即所谓的持久模型。分析了其中具有链元素向列有序性的致密球状态的可能引发。计算这样的系统在任意状态下的熵。结果表明，相对较短的刚性链形成了环环结构。随着链条伸长，托尔增加，但其比例不改变。当参数改变时，环形结构可能会变成传统的单联动结构。简要讨论了该模型在解决核酸三聚体包装问题中的可能应用。
A homogenous elastic macromolecule, the so-called persistent model is considered. Possible initiation of dense globular state in it with nematic orderliness of the chain elements is analysed. The entropy of such a system in an arbitrary state is calculated. It is shown that a relatively short rigid chain forms a thoroidal structure. With the chain elongation thor is increased, without changing its proportions. When the parameters are changed the thoroidal structure may turn into the conventional one-linkage one. Possible application of this model for solving the problem of trimeric package of nuclei acids is discussed in a few words.