The behaviour of high polymers in solution has been extensively investigated by many methods, but the diffusion of high polymers has received little attention experimentally, and limited progress has been made in its theoretical treatment. According to these theories, the rate of diffusion is governed in large measure by the shape of the polymer chain which, however, need not be the same in different solvents. Evidence for a change of shape in different solvents is obtained indirectly from experiments on viscosity, osmotic pressure, sedimentation velocity, and streaming birefringence, while direct evidence is provided by measurements of light scattering. Experimental studies on the diffusion of high polymers should therefore be of interest from two points of view, (i) to provide data by which to examine the validity of existing theories, and (ii) to obtain additional information about the extent to which a polymer may alter its configuration in different solvents. The, present work was undertaken with these two objectives.[...]
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.122881 |
| Date | January 1949 |
| Creators | Adelstein, Peter. |
| Contributors | Winkler, C. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy. (Department of Chemistry.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000469867, Theses scanned by McGill Library. |
Page generated in 0.002 seconds