Enthalpy Relaxation in Phosphorus-Containing Dendrimers

Eric Dantras (1) , Jany Dandurand (1) , Colette Lacabanne (1) , Anne-Marie Caminade (2) , Jean Pierre Majoral (2)

1 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
2 LCC - Laboratoire de chimie de coordination

A set of phosphorus-containing dendrimers involving five generations (g ) 1-5) has been investigated using temperature-modulated calorimetry and standard differential scanning calorimetric techniques. The dendrimers show a complex glass transition temperature with a generation dependence. Enthalpy relaxations have been pointed out in this complex architecture macromolecule. Physical aging manifestations are studied vs complexity growth, with various cooling. The thermal manifestation intensity of physical aging decreases with generation.

Mots clés: Enthalpy Relaxation; Phosphorus-Containing

Domaines: Polymères; Science des matériaux [cond-mat.mtrl-sci]

Eric Dantras, Jany Dandurand, Colette Lacabanne, Anne-Marie Caminade, Jean Pierre Majoral. Enthalpy Relaxation in Phosphorus-Containing Dendrimers. Macromolecules, 2002, 35 (6), pp.2090-2094. ⟨10.1021/ma011228p⟩. ⟨hal-01308056⟩