Fusion of micelles of poly(butadiene-block-2-vinylpyridene) and derivatives on different substrates

Surfactants spontaneously form worm-like structures in aqueous solutions by changing the ambient conditions and/or by being adsorbed on different subs trates. Vesicle formation has been observed by adding anionic charged surfa ctants to a cationic charged surfactant solution. In analogy to these syste ms, shape transitions of so-called crew-cut amphiphiles in organic solvents and after an additional change of solvent have been investigated. The adso rption behaviour of poly(butadiene-block-2-vinylpyridene) on chemically dif ferent substrates has been investigated by scanning focus microscopy on dif ferent dried surfaces. This study shows that not only the ambient condition s acting in the solution but also the substrates used have a significant in fluence on the shapes formed. Furthermore, the morphologies in dependency o f the chain length have been investigated. Copyright (C) 1999 John Wiley & Sons, Ltd.