Thermoplastic elastomers based on ionomeric polyblends of zinc salts of poly(propylene-co-acrylic acid) and carboxylated nitrile rubber

摘要

Ionomeric polyblends of zinc salt of carboxylatednitrile rubbers, abbreviated as Zn-XNBR and zinc salt ofpoly(propylene-co-acrylic acid), abbreviated as Zn-PPA, wereprepared by melt blending. The ionomeric polyblends of Zn-XNBR/Zn-PPA in the compositions of 90/10 and 80/20, parts byweight, behave as ionic thermoplastic elastomers and exhibitsynergism in properties. The ionomeric polyblend showssuperior physical properties than the corresponding non-ionomeric polyblend. The synergism and superior physicalproperties of the ionomeric polyblends are attributed to theformation of strong intermolecular ionic interactions betweenthe component polymers, as observed by the infrared spectroscopic studies.