β Scribed by C.E Cordeiro
No coin nor oath required. For personal study only.
The conformation of polymer chains in a poor solvent and confined in a slit of width D is studied. A variational theory is used to calculate the mean square end-to-end distance. For the asymptotic values of D, the results coincide with the prediction of the scaling theory. For small values of D, the polymer has a two-dimensional (d 2) behavior, while for large values of D the polymer behaves as a three-dimensional (d 3) system. The cross-over between these two regimes occurs monotonically. The effect of the interaction strength between the polymer and the plates is assumed to be repulsive (C 0 ΟΎ 0) and shown to be less important than the effect of collapse forces between monomers.
π SIMILAR VOLUMES
We report some recent results obtained in our laboratory on the poor-solvent behavior of macromolecules. We first discuss the globular collapse of short chains that, unlike long ones, may form compact ordered states. We then address the collapse of random AB copolymers, which may provide significant