Nuclear magnetic resonance (NMR) spectra of all obtained macromonomers were recorded using Bruker DPX HD-400 MHz. The instrument was equipped with a 5 mm Z-gradient broadband decoupling inverse probe. All experiments were conducted at 25 °C. Samples for NMR were prepared by dissolving approx. 20 mg of macromonomer in 0.7 ml of CDCl 3 -d.