The relaxation of single grafted semiflexible chains freely rotating around the grafting point is investigated by means of two dimensional computer simulations and scaling arguments. Both free chains and chains surrounded by topological obstacles are considered. We compute the autocorrelation of the end-to-end vector for the whole chain and for terminal sections of various lengths. Our results are relevant for the relaxation of star polymers with stiff arms or branched semiflexible polymers moving in an array of obstacles.

Topics
Cayley tree model, Friction, Computer simulation, Integral transforms, Complex analysis, Activation energies, Polymers, Statistical thermodynamics, Thermal fluctuations, Random walks
© 2010 American Institute of Physics.
2010
American Institute of Physics
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