Stable phase morphology

Compatibilization in both types of blending results in particle size reduction of the dispersed phase, enhanced interfticial adhesion between the phases, and a thermally stable phase morphology during post-processing steps such as annealing, re-extrusion and injection molding. 

This describes a situation in which two pairs of separately coexisting morphologies are thermodynamically stable phases, namely 7 and 0 at = /xj and a and 7 at /x" = at /x" morphologies a and 0 are only metastable. 

Chou et al. [47] report a previously unknown solid phase of H2O recognized by its peculiar growth patterns, distinctive pressure-temperature melting relationships and Raman vibrational spectra. Morphologies of ice crystals and their P-T melting relationships were directly observed in a HD AC for H2O bulk densities between 1.203 and 1.257 g/cm between -10 °C and 50 °C. Under these conditions, four different ice forms were observed to melt two stable phases, ice V and ice VI, and two metastable phases, ice IV and the new ice phase. The Raman spectra and crystal morphology of the new phase are consistent with a distorted anisotropic structure with some similarities to ice VI. 

Polymer blends can be divided into two groups miscible and immiscible blends. Miscible blends are homogeneous and stable. Their properties tend to be intermediate. However, they are relatively few. Most polymer blends are immiscible. Their properties are strongly affected by their phase morphologies, which are decided by their viscosity, interfacial tension, and processing methods. In this review we will describe polyolefin blends. Many of these blends involve polar polymers with polyolefins. 

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