Two novel N-heterocylic carbene enolate nickel complexes have been prepared and shown to be active for ethylene and propylene polymerization to yield linear polymers.

Experimental data were acquired for: (1) the ignition temperatures of nitrogen–diluted ethylene and propylene by counterflowing heated air for various strain rates and system pressures up to 7 atm; (2) the laminar flame speeds of mixtures of air with acetylene, ethylene, ethane, propylene, and propane, deduced from an outwardly propagating spherical flame in a constant-pressure chamber, for ext...

Capillary rheometry simulates polymer extrusion in a simplified way. It allows the characterisation of polymers by means of determination of the viscosity function and extrudate swell. As regards viscous properties, there is still a lack of constitutive characterisation of rubber blends. In this contribution new concepts are presented how the viscous properties are computed without using common...

Thermoplastic vulcanizates (TPVs) are a special class of thermoplastic elastomers, which are produced by simultaneously mixing and crosslinking a rubber with a thermoplastic polymer at an elevated temperature. Peroxide-cured TPVs based on blends of silicone rubber and thermoplastic Engage of two different types, mainly ethylene-octene and ethylenebutene copolymers at different blend ratios have...

Uniaxial and biaxial cyclic tensile tests stress relaxation were performed on the ethylene propylene diene monomer (EPDM) material to investigate its stress-softening effect. The experimental results reveal that EPDM presents a significant Mullins effect during stretching processes. Furthermore, it is found deformation of does not return zero simultaneously with stress, due viscoelasticity mate...

A series of glass fiber-reinforced and rubber-toughened poly(ethylene terephthalate) hybrid composites were twin-screw extrusion compounded with varying total and relative concentrations of a reactive terpolymer of poly(ethylene-co-methyl acrylate-co-glycidyl methacrylate) (E-MA-GMA) as the elastomeric impact modifier (10-1520 wt.%) and short glass fiber – SGF (20-25-30 wt.%). Haake torque rheo...