| 초록 |
Aliphatic polyether polyols are among the most effective precursor for polyurethanes, which can be applied for foams, elastomers, adhesives and coatings due to their hydrolytic, UV and thermo stability. Here, high functionality polyglycerols were synthesized via one-pot ring-opening polymerization of glycidol using heterogeneous metal complex catalyst. The structural property of catalyst was investigated by infrared, absorption and X-ray photoelectron spectroscopies, X-ray powder diffraction, and elemental analysis. The polymerizations were conducted at various polymerization temperatures with different ratios of catalyst, monomer and solvent. The resultant polyglycerols, characterized by nuclear magnetic resonance spectroscopy and gel permeation chromatography, exhibited narrow polydispersity index, and wide range of molecular weight depending on the reaction condition. |
