Explanation

The possibility and degree of mixing the two macromolecule. The mutual solubility of macromolecule and low molecule is similar, but not identical. For low molecules, mutual solubility means that two compounds can be mixed at the molecular level without phase separation, otherwise they are not compatible. However, the vast majority of macromolecule macromolecule mixtures can not reach the molecular level mixing, and can only reach the macroscopic homogeneous phase, but actually form the mixture of submicroscopic phase separation, which is the so-called "multiphase system". In the incompletely compatible macromolecule mixture, there is also a difference in the degree of mixing. Generally, the closer the solubility parameter of the two macromolecule are, the better the compatibility is.

Classification