ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Dissolution and dilution enthalpies of poly(ethylene glycol)s were measured in water and benzene, resp., by microcalorimetry. The enthalpies depend on both solute concentration and molar mass, indicating interactions between hydroxyl endgroups, ether groups and solvent molecules. Low molar mass samples form hydrogen bonds between hydroxyl and ether groups at solute concentrations of 0,003 g/cm3 and higher. High molar mass samples form intermolecular associates through dispersion forces at concentrations above 0,06 (benzene) and 0,1 g/cm3 (water).
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1981.021821220
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