ABSTRACT

Fluorescence probing showed that SDS binds to polysoaps of like charge such as poly(potassium maleate-a/t-1-alkene), with 1-alkene = 1-decene, 1tetradecene, and 1-octadecene [75,76]. Direct evidence has been obtained for the binding of SDS to PS16(ap = 1.0) [77,78]. The viscoelasticity of pure PSJ6(ap = 1.0) solutions disappeared and the solution viscosity decreased upon addition of SDS or of the nonionic surfactants C10E06 and C12E06 [77,78]. Self-diffusion measurements showed that only a small fraction of the added SDS was bound to the polymer [78]. This result was interpreted as indicating a preferential binding of the surfactant at the junctions between PS16 chains, resulting in their easy breakup.