Features of the crystallization of polychloroprene during annealing

Elastocaloric properties of thermoplastic polyurethane

“…It is worth mentioning that the presence of a melting peak at a temperature between 273 K and 283 K and the ability of the elastomer to crystallize under strain at room temperature has also been observed in other elastomers such as natural rubber (NR), hydrogenated acrylonitrile butadiene rubber (HNBR) or polychloroprene. [17][18][19]30,31 The presence of such a melting peak could be an indicator of a reversible SIC in the elastomers. In the case of SIC, the orientation of the macromolecules in the strain direction causes an entropy reduction of the macromolecules conformation which shifts the crystallization and melting temperatures towards a higher value.…”