Abstract
The solubilities of several groups of common stabilizing additives have been measured in polypropylene over a range of temperatures. Regular solution theory is shown to give a good basis for extrapolation of data but cannot predict solubilities. Structural effects on solubility are discussed. The solubility of an additive is dependent upon intrinsic properties (melting point and heat of fusion) and upon interactions with the polymer and both may be equally important.
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