A photoreactor equipped with a magnetic stirrer, cooling fan and 18 fluorescent lamps (Philips TL 18W BLB) emitting light nominally at 355 nm with a light intensity of 100 mW/cm 2 at reaction flask, was used for all the reactions (Figure ). Size exclusion chromatography (SEC) measurements were performed using a TOSOH EcoSEC GPC system equipped with an auto-sampler system, a temperature-controlled pump, a column oven, refractive index(RI) and light-scattering (LS) detectors, a purge and degasser unit, and a TSKgel superhZ2000 4.6 mm ID × 15 cm × 2 cm column. Tetrahydrofuran (THF) was used as an eluent at flow rate of 1.0 mL min -1 at 40 °C. The refractive index detector was calibrated with polystyrene standards having narrow molecular-weight distributions. SEC data were analyzed by using Eco-SEC Analysis software. UV-VIS-spectra were recorded using an Agilent Carry UV-Vis-NIR doublebeam spectrometer equipped with a 50 W halogen lamp and a deuterium lamp which can operate between 200 and 1100 nm. H NMR spectra were recorded in deuterated acetonitrile and chloroform (CD3CN and CDCl3 with tetramethylsilane as an internal standard) at 500 MHz on an Agilent VNMRS 500 spectrometer at 25 °C. Fouriertransform infrared (IR) spectra were recorded on a PerkinElmer Spectrum One spectrometer equipped with an ATR accessory (ZnSe, PikeMiracle) and a mercury cadmium telluride (MCT) detector. A total of 32 scans were averaged. The liquidchromatography analyses were performed with reversed phase liquid chromatography coupled to high-resolution mass spectrometry (LC-HRMS Thermo Q Exactive, Thermo Fisher Scientific Inc, Waltham, USA). Acquisition of raw LC-HRMS data was performed in full scan mode at a resolution of 35000 with polarity switching. Direct injection LC-HRMS data were recorded on Thermo LCQ-Deca ion trap mass instrument. Crystallographic investigation was accomplished by powder x-ray diffraction (PXRD) method on a Bruker D2 Advanced X-ray diffractometer with a Cu-Kα radiation source operated at 30 kV and 10 mA. The acquisition angle ranged from 10° to 90°, where each step was processed with a 0.05° increment. Thermogravimetric analysis (TGA) was performed on a Perkin-Elmer Diamond TA/TGA with a heating rate of 10 K•min -1 under nitrogen flow of 200 mL•min -1 . Differential scanning calorimetry (DSC) measurements were performed on a Perkin Elmer Diamond DSC 4000 with a heating rate of 10 K•min -1 under nitrogen flow of 20 mL•min -1 . pH measurements were done using a Hanna HI 2211 device calibrated with pH = 4,7,10 buffer solutions.