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ASTM D6579-11(2020)

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Standard Practice for Molecular Weight Averages and Molecular Weight Distribution of Hydrocarbon, Rosin and Terpene Resins by Size-Exclusion Chromatography
standard by ASTM International, 06/01/2020

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Description

1.1 This practice covers the determination of apparent molecular weight (MW) averages and molecular weight distributions (MWD) for THF-soluble hydrocarbon, rosin and terpene resins by size-exclusion chromatography (SEC). This technique is not absolute; it requires calibration with standards of known molecular weight. This practice is applicable to resins containing molecular-weight components that have elution volumes falling within the elution volume range defined by polystyrene standards.

Note 1: SEC is also known as gel permeation chromatography (GPC).

Product Details

Published:
06/01/2020
Number of Pages:
8
File Size:
1 file , 220 KB