Date of Award
Master of Science in Chemical Engineering - (M.S.)
Saul I. Kreps
This project was undertaken for the purpose of designing, constructing, and operating a viscometer which could be employed for measuring viscosities in the range of 200 to 700 poises at temperatures up to 300°C. Such an instrument was built and used to study the viscosity of Type EV polymer during polymerization.
The new viscometer is based cm the principle of concentric rotating cylinders. It is unique in that it can be suspended directly in a polymer batch and will operate under temperature and viscosity conditions as outlined above. Polymerization curves for batches studied show that the instrument gives viscosity values which are reproducible to the extent of +/- 3 percent of the value at 330 to 640 poises.
Jones, Elmer David, "Viscosity determination during polymerization" (1954). Theses. 2264.