The analysis of the MMD of Polyethylene and Polypropylene resins by GPC/SEC, traditionally challenging due to the requirement of high-temperature operation for dissolution and multi-detection methods, is made easy with these polyolefin-specific solutions
CCD is often the most discriminating feature in complex polyolefins and it is based in separation by crystallization or adsorption. These mechanisms allow the physical separation of the different components of the resin because the temperature is related to comonomer content.
The direct measurement of the two-dimensional distribution by cross-fractionation in terms of both molar mass and chemical composition is the most comprehensive way of obtaining a full definition of the microstructure in Polyolefins.
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