Untersuchungen über die Verknäuelung von technischen Polyisobutylenen

With technical grade polyisobutylenes (Oppanole B of BASF), light scattering in n-hexane, osmotic pressure in toluene, and intrinsic viscosity in different solvents are measured. The data are used to derive polydispersity, degree of coiling, and coil expansion of the samples. The undisturbed dimensions are estimated.