Author/Authors :
Acierno، نويسنده , , Domenico and Amendola، نويسنده , , Eugenio and Carfagna، نويسنده , , Cosimo and Concilio، نويسنده , , Simona and Iannelli، نويسنده , , Pio and Incarnato، نويسنده , , Loredana and Scarfato، نويسنده , , Paola، نويسنده ,
Abstract :
The presence of hydrogen bonds in the chemical structure of polymers promotes and stabilises the crystalline phase. For liquid crystalline (LC) polymers, the side insertion of aliphatic units to the mesogenic unit is a suitable artifice to decrease the crystalline stability, without significantly affecting the stability of the LC phases. Here, we report on the synthesis of a LC homo-polyurethane with high hydrogen bond concentration along the chain and bearing an n-pentyl side-chain. Rheological behaviour, thermal analysis, and X-ray diffraction show that the stable LC phase is the nematic.
