An alternative mechanism of forming the oxide coating is, consistent with the earlier single metal particle combustion studies, via the formation of a metal oxygen solution followed by a phase separation occurring within the burning particles.
Reaction-induced phase separation occurring by spinodal decomposition is simulated in this paper.
The blend films obtained by casting and then drying were not transparent, suggesting that phase separation occurred between the polyimide (PI and PUU components.
Fracture surfaces showed that phase separation occurred, resulting in a two-phase morphology.
Results thus obtained led to the conclusion that phase separation occurs during the freeze-drying step.
We observed that phase separation occurs when a number of conditions are met.
If phase separation occurs, it always occurs in both monolayers, but is generally weaker in the more stable monolayer.
When hard segment crystallisation was avoided by fast cooling, a crystallisation-induced phase separation occurred upon reheating.
In the case where the PVC solution in DMF was cast, the phase separation occurred cooperatively by the evaporation of DMF and the absorption of water by DMF at high relative humidity conditions.
Phase separation occurred, therefore, only by liquid liquid demixing.
In all cases, a phase separation occurs in the calcium carbonate growth solution driven by the association of these polymers with their oppositely charged counterions (Ca2+ for the anionic polymers and carbonate for the cationic PAH).
