Synthesis of a novel co-polymer made by the addition polymerisation between MEGDMA and 4-AB by aza-Michael addition (AMA) polymerisation method is a fascinating field of research. The present investigation yielded a hazardous metal catalyst-free and toxic solvent-free methodology. The AMA polymerisation was carried out at five different [M 1 /M 2 ] values under N 2 atmosphere at 100 • C for 2 h. Thus, obtained co-polymer was characterized by Fourier transform infrared spectroscopy, UV-visible reflectance spectroscopy, X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis and scanning electron microscopy (SEM). The SEM image confirmed the formation of polymer nanoparticles. The non-isothermal degradation kinetics was followed with four different models, such as Flynn-Wall-Ozawa, Auggis-Bennet, Kissinger and Friedman method. Among the models used, the Kissinger method yielded the lowest degradation kinetics. The degradation kinetics of the co-polymer was followed with the help of model-free methods. Moreover, it was critically compared with the literature.

Congo red (CR) dye functionalized magnetic nanoparticle was synthesized and characterized by Fourier Transform Infra Red, UV-visible, fluorescence emission spectra, field emission scanning electron microscopy and vibrating sample magnetometry like analytical techniques. The prepared nanohybrid was chemically tagged with poly(ε-caprolactone) (PCL) via ring opening polymerization of ε-caprolactone. The PCL/Fe 3 O 4-CR nanocomposites were characterized by the same techniques and differential scanning calorimetry and thermogravimetric analysis methods. The magnetic moment values of the Fe 3 O 4 after the formation of the nanohybrid and nanocomposite were found to be reduced due to the encapsulation and surface functionalization effects. The magnetic moment value of Fe 3 O 4 was decreased for the nanohybrid and nanohyrbid tagged PCL. The non-isothermal degradation kinetics was characterized in order to find out the energy of activation (E a) for the thermal degradation of the PCL. For the sake of comparison, the non-isothermal degradation kinetics of the methylorange functionalized Fe 3 O 4 end capped PCL was carried out and the results were critically compared.

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