Abstract: Disclosed is a compound comprising a saturated oligomer of isoprene bonded to a polar group, said compound having formula (I): in which R is H or a C1-C4 alkyl, n is 2-17, and R′ is a radical selected from the group consisting of X, COOR″, CN, NR2, and NR2.HX, wherein R″ is selected from the group consisting of R, NR2, and NR2.HX or a monovalent metal cation, X being I, Cl, Br or F, and each R in NR2 and NR2.HX being the same or different. In a preferred embodiment the polar group is a quaternary ammonium radical. The compound is useful as a compatibilizer of solid inorganic material, and propylene and ethylene polymer material.

Abstract: Disclosed is clay material, the particles of which are intercalated with a compound comprising a saturated isoprene oligomer bonded to a polar group. In a preferred embodiment the polar group is a quaternary ammonium radical. Further disclosed is a nanocomposite comprising C2-C3 &agr;-olefin polymer material, and, dispersed in the matrix of the olefin polymer material, exfoliated clay material, the particles of which before exfoliation were intercalated with said compound.