New dendronized polymersfromtris andethylenediamine derivatives

Amphiphilic dendronized monomers and polymers from tris (hydroxymethyl) amino methane (TRIS) and N-Boc-ethylene diamine were synthesized following adivergent path way starting from TRIS and N-Boc-ethylenediamine. There action with acrylonitrile, after methanolysis, produced the desired dendrons. The monomers were obtained by the reaction of acryloyl chloride with the ester-terminated dendrons. The monomers and polymers were characterized by FT-IR, 1H-NMR, and13C-NMR spectroscopic measurements. The spectroscopic results were in good agreement with the expected chemical structures. The polymers were characterized by Size Exclusion Chromatography (SEC), Thermo gravimetric Analysis (TGA)and Differential Scanning Calorimetry (DSC). Thermal analysis of the samples indicated that both polymers were thermally stable and behaved as semi crystalline polymers with melting temperatures of 34.0 and 42.0°C. The results suggest that dendronized polymers of this family can be prepared with several chemical modification sintheside group. These structures enable the preparation of materials with different cavities in their architecture that canentrap small molecules for various purposes and modify theamphiphilicity. A new syntheticroute for the preparation of new amphiphilic monomers and polymers is reported and discusse dinterms of the chemical structure.