Polyurethane elastomers thermal analysis

Thermoplastic polyester elastomers Tripropylene glycol diacrylate Triphenyl phosphate Thermoplastic polyurethane Trimethylolpropanetrimethacrylate Thermal volatilisation analysis Transmitter signal... 

Dallas, Tx., Spring 1998, p.24. 012 ANALYSIS OF A POLYURETHANE ELASTOMER USING THERMAL 2D FT-IR... 

Our own work was motivated by the hope that more detailed information on the postcure process of polyurethane elastomers could be obtained by combining the quantitative measurements like the enhancement in the mechanical properties in time with various dynamic processes which take place concomitantly, similarly as performed by Toffey et al in the case of cellulose crosslinking by urethane groups when the dynamic mechanical thermal analysis (DMTA) was used [341],... 

Fig. 5.11. Dynamic mechanical thermal analysis (DMTA) properties of PPDI and CHDI polyurethane elastomers.

It is possible to use differential thermal analysis (DTA) and thermogravi-metric analysis (TGA) to evaluate the thermal properties of several types of polyurethane elastomers. For example, a typical elastomer prepared from MDI, a polyether and an aliphatic diamine extender will show from DTA two very small endothermic changes, one at 150°C and one at 205°C that is identical with the softening temperature. The polymer is found to melt at 2WC and exhibit weight loss in two steps, respectively, beginning at 280°C and 325X. 

Bagdi, K. Molnar, K. Pukanszky, B. Jr. Pukanszky, B. Thermal analysis of the structure of segmented polyurethane elastomers. Journal of Thermal Analysis and Calorimetry, 2009, 98, 825-832. 

---