1 research outputs found
Filler-Reinforced Elastomers Based on Functional Polyolefin Prepolymers
Carboxy-telechelic
polyolefin prepolymers were synthesized via
ring-opening metathesis polymerization of 3-ethyl-1-cyclooctene in
the presence of maleic acid. Following hydrogenation these difunctional
prepolymers were cross-linked with a trifunctional aziridine in the
presence of fumed silica or carbon black fillers to yield polyolefin
elastomers with significantly enhanced mechanical properties as compared
to the unfilled versions. The tensile strength, modulus, and tear
strength of the elastomers can be tuned by changing the filler type
and the total filler content. Further study on the reinforcing mechanism
suggests that both the polymer–filler interactions and the
filler–filler interactions play key roles in the mechanical
property enhancements