Report

Neutral, Single-Component Nickel (II) Polyolefin Catalysts That Tolerate Heteroatoms

See allHide authors and affiliations

Science  21 Jan 2000:
Vol. 287, Issue 5452, pp. 460-462
DOI: 10.1126/science.287.5452.460

You are currently viewing the abstract.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution

Abstract

More than half of the 170 million metric tons of polymers produced each year are polyolefins. Current technology uses highly active cationic catalysts, which suffer from an inability to tolerate heteroatoms such as oxygen, nitrogen, and sulfur. These systems require scrupulously clean starting materials and activating cocatalysts. A family of catalysts has been developed whose members are tolerant of both heteroatoms and less pure starting materials. These heteroatom-tolerant neutral late transition metal complexes are in fact highly active systems that produce high-molecular-weight polyethylene, polymerize functionalized olefins, and require no cocatalyst.

View Full Text