Effect of Trans-Cis Isomerization on Glass Transition and Mechanical Properties of Main-Chain Azobenzene Polymers: Role of Chromophore Content

This dataset contains raw and processed experimental data for a series of synthesized azo-based photoresponsive polymers (Azo-FPAEs). The dataset comprises two complementary parts: Nanoindentation measurements, performed to evaluate the mechanical properties (hardness and reduced modulus) and monitor photomechanical effects in three distinct polymer states: Pristine (initial) state (before UV irradiation). Photoisomerized state (after UV irradiation, trans-cis isomerization). Thermally relaxed state (after thermal relaxation, cis-trans back-isomerization). The nanoindentation dataset includes raw force-displacement curves (.txt files) used for mechanical characterization and graphical analysis. Differential Scanning Calorimetry (DSC) measurements of fluorinated poly(aryl ether)s containing different contents of azo groups were performed to investigate their thermal behavior and photoinduced effects. The DSC dataset includes: First and second heating scans of pristine polymers (control) recorded at heating rates of 20 and 40 °C/min. First and second heating scans of UV-irradiated polymers recorded at the same heating rates. Raw DSC thermograms and processed data files used for determination of glass-transition temperatures (Tg), analysis of thermal relaxation phenomena, and comparison of the thermal behavior of pristine and photoisomerized polymer states. This dataset serves as the Electronic Supplementary Information (ESI) supporting the research manuscript currently being prepared for submission. The data provide a comprehensive experimental basis for evaluating the relationships between polymer composition, photoinduced structural changes, thermal behavior, and mechanical properties.