Melts of semi-flexible, living polymers: a lattice model

Menon, G. I. ; Pandit, R. ; Barma, M. (1993) Melts of semi-flexible, living polymers: a lattice model EPL: Europhysics Letters, 24 (4). pp. 253-258. ISSN 0295-5075

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Official URL: http://iopscience.iop.org/0295-5075/24/4/003

Related URL: http://dx.doi.org/10.1209/0295-5075/24/4/003

Abstract

A lattice model for the ordering of melts of "living polymers", incorporating semi-flexibility, vacancies and open ends, is studied in two dimensions by Monte Carlo simulations and the analysis of exactly solvable limits. We present evidence for high-temperature disordered, and low-temperature ordered phases separated by a continuous transition. If the density of open ends is small, strong crossover effects, arising because of the proximity of the power law phase in the F-model limit of our model, dominate our simulations. The distribution of polymer lengths always has an exponential tail; however, in the crossover regime, it decays with a power law for small and intermediate lengths. The relevance of our study to other lattice models for melts of semi-flexible polymers is discussed.

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ID Code:79603
Deposited On:27 Jan 2012 12:59
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