An Ebulliometer for Low-Molecular-Weight Polymers.
PICATINNY ARSENAL DOVER N J FELTMAN RESEARCH LABS
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The ebulliometer described in this report is a modified Menzies-Wright type which can be used to determine number-average molecular weights of polymers up to several thousand with reasonably good precision. The performance of the apparatus with a limited number of materials of known molecular weight is discussed. The results of the experimental runs show a reproducibility within or-2 and comparable accuracy in the molecular weight range investigated from 178 to 595. Author, modified-PL.