While at Karlsruhe and later, Zurich, Staudinger began research in the chemistry of rubber, for which very high molecular weights had been measured by the physical methods of Raoult and van 't Hoff.
I Karlsruhe och senare i Zürich började Staudinger forskning inom gummikemi, där mycket höga molekylvikter hade mätts genom fysikaliska metoder av Raoult och van't Hoff.