Abstract
The thermally assisted detachment of a self-avoiding polymer chain from an adhesive surface by an external force applied to one of the chain-ends is investigated. We perform our study in the “fixed height” statistical ensemble where one measures the fluctuating force, exerted by the chain on the last monomer when a chain-end is kept fixed at height h over the solid plane at different adsorption strength \( \epsilon\) . The phase diagram in the h -\( \epsilon\) plane is calculated both analytically and by Monte Carlo simulations. We demonstrate that in the vicinity of the polymer desorption transition a number of properties like fluctuations and probability distribution of various quantities behave differently, if h rather than f is used as an independent control parameter.
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Bhattacharya, S., Milchev, A., Rostiashvili, V.G. et al. Pulling an adsorbed polymer chain off a solid surface. Eur. Phys. J. E 29, 285–297 (2009). https://doi.org/10.1140/epje/i2009-10492-8
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DOI: https://doi.org/10.1140/epje/i2009-10492-8