Thermoelectric determination of polymer molecular weights
- 1 June 1964
- journal article
- research article
- Published by Wiley in Journal of Polymer Science Part A: General Papers
- Vol. 2 (6) , 2547-2554
- https://doi.org/10.1002/pol.1964.100020606
Abstract
An apparatus is described for the determination of number‐average molecular weights, based on the thermoelectric method as proposed by Hill. With this improved instrument, temperature differences of down to approximately 5 × 10−5°C. can be recorded. This allows determination of molecular weights up to 40,000 for the case of coiled macromolecules in a poor solvent. The accuracy of measurements, for all molecular weights, has been established by using benzene solutions of polyisobutenes of narrow and defined molecular weight distributions.Keywords
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