**3. Analysis of feedstock and products of the MAP process**

As described above, the plant can carry out the MAP process of waste plastic materials at the end of its life cycle, from which three types of products were obtained (liquid, solid, and gas). During the experiment, samples were collected for each type of material for their characterizations. These analyses provided useful information to establish the quality and commercial value of the products formed. The following paragraphs report for each type of polymer tested, a description of analysis results, both for the starting material and the products obtained from the MAP.

#### **3.1 Plastic materials used in MAP process**

For each plastic material evaluated during the experiments, thermogravimetric analysis (TGA) and differential scanning calorimetric analysis (DSC) were carried out to obtain information on the polymer composition, stability and consequently predict the yield of the pyrolysis products. Specifically, TGA and DSC are two thermal analyses used to characterize polymers. TGA variations measure the weight loss of a sample subject to a constant increase in temperature to quantify the products formed, including gaseous emissions, while DSC measures phase transitions such as melting point and glass transition temperature.
