A reduced description of the local dynamics of star polymers

A reduced description of the ORZLD local dynamic of homogeneous star polymers in θ solutions is presented. The reduced description directly uses bond variables whose dynamics are solved in terms of normal bond model. The bond modes enable us to take advantage of the symmetry of the star, thus drastically reducing the computer time required to diagonalize the involved matrices. The behavior of the reduced relaxation modes as a function of mode range, flexibility, and hydrodynamic interaction is obtained and discussed.