Association behavior of polyisoprenes having cholesterol and phosphatidylcholine analogous end groups K. Kostakis, S. Mourmouris, D. Charalabidis and M. Pitsikalis Eur. Phys. J. E, 10 1 (2003) 55-63 Published online: 11 March 2003 DOI: 10.1140/epje/e2003-00008-y