Related Experiment Video
Updated: Feb 10, 2026

Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
Polyethylene with Good Elasticity Synthesized by Anilinotropone Nickel Catalysts
Gongjian Hu1,2, Inzamam Abbasi2, Bo Wang2
1Key Laboratory of Shandong Provincial Universities for Functional Molecules and Materials, Qingdao University, Qingdao 266071, China.
None:
Polyolefin elastomers (POEs) are widely used in automotive, photovoltaic film, and home appliance industries. Compared to the classic copolymerization of ethylene and α-olefin (mainly 1-butene and 1-octene), branched polyethylene (PE) bearing similar elasticity as that of the POE is getting more attention recently. A number of cationic nickel catalyst systems were established, and good to excellent elasticity was achieved. In this work, we developed a series of anilinotropone nickel complexes bearing a hemilabile ethereal group and efficiently polymerized ethylene to produce branched PE. Tensile property study revealed that PE synthesized from the Ni2 (PENi2) catalyst displayed a stress-at-break value of 7.7 MPa and a strain-at-break value of 1870%. Interestingly, the strain recovery (SR) of PENi2 (79%) is higher than that of POEs 8150 (67%) and 7447 (67%). Quantitative 13C NMR studies suggest that PENi2 has mainly a methyl branch and a higher total branching density (88/1000) than POEs 8150 (46/1000) and 7447 (76/1000).
Related Concept Videos
Elasticity
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
Elasticity in Concrete
Elastic Potential Energy
Potential energy is also associated with the elastic force exerted by an ideal spring. The work done by this force can be represented as a change in the elastic potential energy of the spring. Thus, the work done by a perfectly elastic spring, in one dimension, depends...
Strain and Elastic Modulus
Elastic Collisions: Introduction
Elastic Collisions: Case Study

