THE PROPERTIES AND THE APPLICATIONS OF THE HYDROGENATED POLYISOPRENE

Abstract

The typical properties and the applications of the hydrogenated liquid polyisoprene with low molecular weight, was examined.
The heat resistance of the polyisoprene is considerably improved by the hydrogenation more than 60% of its carbon-carbon double bonds.
The partially hydrogenated polyisoprene, which remains a few double bonds, is vulcanizable with conventional manners, for example using sulfur or peroxides. The hydrogenated polyisoprene has good compatibility with the less unsaturated rubber, for instance EPDM or IIR. Furthermore, the partially hydrogenated polyisoprene with the adequate hydrogenation ratio can be co-vulcanizable with EPDM, IIR. So, it can be used as the reactive plasticizer for them.
It can be blended to another saturated polymers. As SEBS has good heat resistance, the plasticizer with good heat resistance is desirable for it. The hydrogenated polyisoprene is suitable for SEBS, because it has good heat resistance and enough compatibility with SEBS. It makes better the low temperature properties of SEBS. Its compatibility with PP is also good. The addition of it to PP increases the printability of PP. The hydrogenated polyisoprene will be expected as a good modifier for these polymers.