Molar mass distributions were analysed using PSS SECcurity2 GPC systems operated by PSS WinGPC software, equipped with an autosampler, a SDV 5.0 μm guard column (50 x 8 mm), followed by three SDV analytical 5.0 μm columns with varying porosity (1000 Å, 100000 Å and 1000000 Å) (300 x 8 mm) coupled to a differential refractive index (RI) detector and viscosity detector using tetrahydrofuran (THF) as the eluent at 40 °C with a flow rate of 1 mL/min. Toluene was used as the flow marker. The GPC system was calibrated using linear narrow polystyrene standards from PSS Laboratories ranging from 682 to 2.52 x 106 g/mol PS (K = 14.1 x 10-5 dLg-1 and α= 0.70, THF 30 °C). Molar masses of the samples were determined by universal calibration using Mark-Houwink-Kuhn-Sakurada (MHKS) parameters. Molar masses of the PEMA homopolymer and block copolymers were determined by using MHKS parameters for PMMA (K = 12.98 x 10 -5 dLg-1 and α = 0.688, THF 30 °C).