standard polystyrene samples in tetrahydrofuran solution were obtained [M. KolinskyThe following data on intrinsic viscosities and GPC peak elution volumes at 25°C forand J. Janca, J. Polym. Sci., Chem. Ed., 12, 1181 (1974)]:Mwx 10-3[n] (cm /g) 206.7Ve (cm³)86741117398.25119.8510.35.0125.067.043.627.614.08.85.2149157177234253.5186.5Construct an elution volume calibration curve for poly(vinyl bromide) in tetranyaro-füran at 25°C, given that the MHS constants for this system are K = 1.59×10-4cm2/g and a = 0.64 [A. Ciferri, M. Kryezewski, and G. Weil, J. Polym. Sci., 21, 167(1958)], and calculate the weight average molecular weight of the polymer.199.5219

Mw×10-3 log Mw Ve 867 2.938019 149 411 2.613842 157 173 2.238046 177…

The following data on intrinsic viscosities and GPC peak elution volumes at 25°C fo= standard polystyrene samples in tetrahydrofuran solution were obtained [M. Kolinsky and J. Janca, J. Polym. Sci., Chem. Ed., 12, 1181 (1974)]: Mw x 10-3 [n] (cm /g) 206.7 Ve (cm³) 867 411 173 98.2 51 19.85 10.3 5.0 125.0 67.0 43.6 27.6 14.0 8.8 5.2 149 157 177 186.5 199.5 219 234 253.5 Construct an elution volume calibration curve for poly(vinyl bromide) in tetrahydro- füran at 25°C, given that the MHS constants for this system are K = 1.59× 10-2 cm2/g and a = %3D 0.64 [A. Ciferri, M. Kryezewski, and G. Weil, J. Polym. Sci., 27, 167 (1958)], and calculate the weight average moleçular weight of the nolymer.

The following data on intrinsic viscosities and GPC peak elution volumes at 25°C fo= standard polystyrene samples in tetrahydrofuran solution were obtained [M. Kolinsky and J. Janca, J. Polym. Sci., Chem. Ed., 12, 1181 (1974)]: Mw x 10-3 [n] (cm /g) 206.7 Ve (cm³) 867 411 173 98.2 51 19.85 10.3 5.0 125.0 67.0 43.6 27.6 14.0 8.8 5.2 149 157 177 186.5 199.5 219 234 253.5 Construct an elution volume calibration curve for poly(vinyl bromide) in tetrahydro- füran at 25°C, given that the MHS constants for this system are K = 1.59× 10-2 cm2/g and a = %3D 0.64 [A. Ciferri, M. Kryezewski, and G. Weil, J. Polym. Sci., 27, 167 (1958)], and calculate the weight average moleçular weight of the nolymer.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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