The analytical application of differential thermal analysis (DTA) for the identification and evaluation of a number of polyethylene blends is described. New DTA data are presented for hompolymer blends of low and intermediate density polyethylenes and low and high density polyethylenes whose degrees of branching are sufficiently different. The concentration by weight of each of the crystalline components in the blend is determined from DTA thermograms by the peak area method and the melting point‐density method. The density of polyethylenes and polyethylene blends is determined with the use of density gradient columns.
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Bill B. Stafford (1965) studied this question.
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