Method for measurement of polymer molecular weight based upon a

Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Molecular weight

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374 45, G01N 2500

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053416724

ABSTRACT:
A molecular weight of a polymer is measured by a process including steps of: heating a polymer portion with a heating device, measuring, with a temperature measuring device, the difference between temperatures of at least two points of the polymer portion at each of which the polymer portion is subjected to a thermally different influence from each other by the heating device, and estimating the molecular weight of the polymer which corresponds to the difference between the temperatures obtained by the measuring step according to a relationship between the temperature difference and the molecular weight of the polymer which relationship has been beforehand obtained.

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