Potentially, a weakening effect occurs as the crystalline areas are not distributed homogenously enough throughout the bulk to achieve a stiff material. Therefore, when the material is strained, energy is solely absorbed by the amorphous regions. Additionally, atomic force microscopy (AFM) enhanced by force-distance spectroscopy was conducted on polished surfaces (Figure ). Phase imaging allows for a qualitative assessment of material properties (stiffness, viscoelasticity, adhesion or others) across the scanned surface. We observed a strong phase separation between a softer and harder phase for the pure CHTT-containing polymer with little interphase content. By utilizing force-distance spectroscopy and calculating the Young's modulus based on the DMT model, quantitative assessments of local properties can be made. We identified the bright-colored areas as the harder phase, as they display an approximately 60% higher