. The Bell System technical journal . and about 2650 dynes/cm for the X 10 molecularweight solution. The variation with temperature, if any, is small. Thecorresponding viscosities 773 for the two solutions are nearly equal asshown by Fig. 14, and have an activation energy of kilocaloriesper mole. The final high frequency short segment relaxation has ahigh stiffness of 83,000 dynes/cm^ for a 1 per cent solution of X 10*^molecular weight. The corresponding viscosities for the two solutionsshown by Fig. 14 have nearly identical values and an activation energyof kilocalories pe
. The Bell System technical journal . and about 2650 dynes/cm for the X 10 molecularweight solution. The variation with temperature, if any, is small. Thecorresponding viscosities 773 for the two solutions are nearly equal asshown by Fig. 14, and have an activation energy of kilocaloriesper mole. The final high frequency short segment relaxation has ahigh stiffness of 83,000 dynes/cm^ for a 1 per cent solution of X 10*^molecular weight. The corresponding viscosities for the two solutionsshown by Fig. 14 have nearly identical values and an activation energyof kilocalories per mole, very closely equal to the entangle-ment relaxation viscosity. These upper two relaxations persist in pure liquid polymers as dis-cussed in the next section, although they are spread out over a smallrange of relaxation time values. The highest one can be traced in meas-urements of mechanical properties of solid plastics such as polyethyleneand nylon which indicates that these materials should have rubber like ^ MOLECULAR XIO6 MOLECULAR WEIGHTCYCLOHEXANE SOLVENT
Size: 2733px × 914px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
