An exactly solvable model for the collapsed state of Gaussian polymer chains

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Abstract
The influence of intermolecular and intramolecular interactions on the end-to-end distance is shown to be proportional to N−1/4, where N is the contour length of the polymer chain, for a single chain with intramolecular interactions. The same scaling behavior is obtained as a consequence of intermolecular interactions between two polymer chains. The apparent collapsed state chain size is reduced below that of experiment due to the absence of excluded volume. The onset of the collapsed state occurs above a threshold contour length at constant temperature where intramolecular interactions dominate the space of available conformations.

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