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8. The condition for a polymer in solution may be achieved by varying either the temperature of a single solvent or the
Posted: Tue Nov 23, 2021 8:34 am
by answerhappygod
- 8 The Condition For A Polymer In Solution May Be Achieved By Varying Either The Temperature Of A Single Solvent Or The 1 (85.37 KiB) Viewed 83 times
8. The condition for a polymer in solution may be achieved by varying either the temperature of a single solvent or the composition of a mixed solvent. Comment on the factors involved. a Measurement of the osmotic pressure of a poly(isobutylene) sample in (a) cyclohexane and (b) benzene at 298 K gave the following results: c/g dm-3 1 2 3 4 II/Pa(a) || 5.17 || 13.95 | 27.26 | 45.68 II/Pa(b) 3.32 7.04 12.16 15.70 Determine the molecular weight and the second virial coefficient in each solvent. Comment on the results. (a) 710k (b) 800k; B = (a) 8.0x10-5 (6) 6.7x10-4kg-2