At a similar chitosan loading, the maximum torque
values assume the following order: SBR > ENR-25 > STR 5L.
This is due to the properties exhibited by the different types
of rubber. In SBR, the presence of styrene pendant groups
along the rubber chains hinders the movement of the
rubber chains due to their bulkiness and, therefore, the
torque is higher compared to that of ENR-25 and STR 5L.