Worm-like micelles in water solutions of 1, 4 poly (1, 3-butadiene)-polyethylene oxide diblock copolymer Brisa Arenas-Gómez, Marko Vinceković, Cristina Garza and Rolando Castillo Eur. Phys. J. E, 37 6 (2014) 51 Published online: 26 June 2014 DOI: 10.1140/epje/i2014-14051-0