Polymer solubility can be used for characterisation of several aspects of polymers. In important aspect is understanding the extractable matter which can have an impact on the material performance and also be subject to regulations. Important structural characterisation of PP is made and characterisation of degree of cross linking for other materials.
Solubility in hexane or heptane according to ISO 6427
Xylene soluble for polypropylene (PP) according to ISO 16152
Degree of cross linking according to ISO 10147
Toluene insoluble according to internal Norner method