Chain Walking: A New Strategy to Control Polymer Topology
10.1126/science.283.5410.2059
Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

Ethylene pressure has been used to control the competition between isomerization (chain walking) and monomer insertion processes for ethylene coordination polymerization catalyzed by a palladium-α-diimine catalyst. The topology of the polyethylene varies from linear with moderate branching to “hyperbranched” structures. Although the overall branching number and the distribution of short-chain branching change very slightly, the architecture or topology of the polyethylene changes from linear polyethylene with moderate branches at high ethylene pressures to a hyperbranched polyethylene at low pressures.

Bibliography

Guan, Z., Cotts, P. M., McCord, E. F., & McLain, S. J. (1999). Chain Walking: A New Strategy to Control Polymer Topology. Science, 283(5410), 2059–2062.

Authors 4
  1. Zhibin Guan (first)
  2. P. M. Cotts (additional)
  3. E. F. McCord (additional)
  4. S. J. McLain (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 27, 2002, 5:40 a.m.)
Deposited 1 year, 7 months ago (Jan. 12, 2024, 10:36 p.m.)
Indexed 4 days ago (Aug. 29, 2025, 6:48 a.m.)
Issued 26 years, 5 months ago (March 26, 1999)
Published 26 years, 5 months ago (March 26, 1999)
Published Print 26 years, 5 months ago (March 26, 1999)
Funders 0

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@article{Guan_1999, title={Chain Walking: A New Strategy to Control Polymer Topology}, volume={283}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.283.5410.2059}, DOI={10.1126/science.283.5410.2059}, number={5410}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Guan, Zhibin and Cotts, P. M. and McCord, E. F. and McLain, S. J.}, year={1999}, month=mar, pages={2059–2062} }