A SIMPLE METHOD FOR NEAR QUANTITATIVE MEASUREMENT OF POLYMER BLEND COMPOSITION AND MIXING UNIFORMITY

摘要

Mixing is an important unit operation in the formulation, and fabrication of polymers, and a knowledge of both the dispersive and distributive components are necessary to adequately characterize a specific mixing process. Dispersive mixing, a measure of structural fineness, is important for rubber toughened and filled systems. Distributive mixing, a measure of homogeneity, is important for thermoplastic blends and reactive processing. Described herein is a rapid near quantitative technique to characterize blend compositional uniformity by using selective pyrolysis of PMMA containing model systems.