半柔性共聚物链三维吸附的精确结果
Exact results for the adsorption of a semiflexible copolymer chain in three dimensions
摘要：
本文采用定向自回避行走的晶格模型解析求解，研究了半柔性连续共聚物链在垂直于共聚物链三维行走择优方向的二维不可穿透表面上的吸附-脱附相变行为。链的刚度已被占通过引入一个能量势垒的每个弯曲的共聚物链的行走。用生成函数法确定了一类单体与表面相互作用时吸附-脱附转变点的精确值，(i)无相互作用（ii）吸引相互作用和（iii）排斥相互作用。在每种情况下得到的结果表明，刚性共聚物链吸附转变发生在一个较小的值的单体表面吸引力比一个灵活的共聚物链。这些特征类似于半柔性均聚物链的吸附。
英文摘要：
Lattice model of directed self avoiding walk has been solved analytically to investigate adsorption desorption phase transition behaviour of a semiflexible sequential copolymer chain on a two dimensional impenetrable surface perpendicular to the preferred direction of the walk of the copolymer chain in three dimensions. The stiffness of the chain has been accounted by introducing an energy barrier for each bend in the walk of the copolymer chain. Exact value of adsorption desorption transition points have been determined using generating function method for the cases in which one type of monomer is having interaction with the surface viz., (i) no interaction (ii) attractive interaction and (iii) repulsive interaction. Results obtained in each of the case show that for stiffer copolymer chain adsorption transition occurs at a smaller value of monomer surface attraction than a flexible copolymer chain. These features are similar to that of a semi-flexible homopolymer chain adsorption.
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