Facile one-pot approach for preparing functionalized polymeric nanoparticles via ROMP

A facile approach to the preparation of functionalized polymeric nanoparticles with UV-crosslinkable core and bromine-bearing shell has been developed from the polymerization-induced self-assembly of the block copolymers PBNBE-b-PCONBI and PBNBE-b-PCONBI-b-PONBDM. The block copolymers were characterized by means of ¹H NMR and GPC. The polymeric nanoparticles with a fixed shell length and varied core lengths were obtained through the control of the molar ratio of monomers in the feed. The micelles were crosslinked using UV-irradiation, and the characteristics of the polymeric nanoparticles in toluene, THF, or CHCl₃ before and after UV irradiation were investigated by means of DLS, UV-Vis, GPC, AFM, and TEM. A facile approach to the preparation of functionalized polymeric nanoparticles with UV-crosslinkable core and bromine-bearing shell has been developed from the ROMP-induced self-assembly of the norbornene-based block copolymers in a selective solvent. The block copolymers were characterized by means of NMR and GPC analyses. The formed polymeric nanoparticles were investigated by means of DLS, UV-Vis, GPC, AFM, and TEM techniques.