Synthesis and characterization of poly(ε-caprolactone) tetra-arm star polymer using tetra terminal alkynyl-substituted phthalocyanine by the combination of ring-opening polymerization and “click” chemistry

Abstract The synthesis of poly(ε-caprolactone) (PCL) tetra-arm star polymer was carried out using “click” chemistry and ring-opening polymerization techniques. For this purpose, azido (PCL-N 3 ) acquired ε-caprolactone 2-[2-(2-azidoethoxy)ethoxy]ethanol (N ol). N ol obtained sodium azide 2-[2-(2-chloroethoxy)ethoxy]ethanol. 4-(prop-2-ynyloxy)-phthalonitrile by 4-nitrophthalonitrile propargyl alcohol. 2(3),9(10),16(17),23(24) Tetrakis-[(prop-2-ynyloxy)-phthalocyaninato]zinc(II) (Pc-propargyl) synthesized a metal salt. By reacting Pc-propargyl PCL-N , PCL chemistry. products were characterized via scanning electron microscopy, 1 H-nuclear magnetic resonance spectroscopy, ultraviolet-visible spectrophotometry, Fourier-transform infrared gel permeation chromatography instruments. spectroscopic analyses prove that the built through combination ROP We provided protocol for polymer, statement reproducibility with respect to properties polymer. This study is an example novel type reaction, from phthalocyanine. can open door diverse could potentially cause major advances in synthetic macromolecular