Effects of entanglement concentration on and local segmental motions P. Bernazzani, S.L. Simon, D.J. Plazek and K.L. Ngai Eur. Phys. J. E, 8 2 (2002) 201-207 Published online: 15 May 2002 DOI: 10.1140/epje/i2001-10087-5