A semiflexible polymer chain under geometrical restrictions: Only bulk behaviour and no surface adsorption

We analyse the conformational behaviour of a linear semiflexible homo-polymer chain confined by two geometrical constraints under a good solvent condition in two dimensions. The constraints are stair shaped impenetrable surfaces. The impenetrable surfaces are lines in a two dimensional space. The infinitely long polymer chain is confined in between such two (A and B) surfaces. A lattice model of a fully directed self-avoiding walk is used to calculate the exact expression of the partition function, when the chain has attractive interaction with one or both the constraints. It has been found that under the proposed model, the chain shows only a bulk behaviour. In other words, there is no possibility of adsorption of the chain due to restrictions imposed on the walks of the chain.Comment: 9 pages, 2 figure

Theoretical estimate of the probability for macromolecule formation

We estimate the probability regarding polymerization of a macromolecule which is made of distinct monomers. The lattice model of the random walk has been used to mimic the conformations of an ideal chain in two and three dimensions. It has been shown through analytical estimates that the flexible macromolecules may be easily formed than the stiff macromolecules in two and three dimensions.Comment: 08 Pages, 04 Figures and a Tabl