Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Long-Chain Branching

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_7007

In a polymer’s structure, the presence of arms (branches) off the main chain that are about as long as the main chain. In making low-density polyethylene, a typical molecule may contain 50 short branches and only one or zero long branch, yet the presence of long branches greatly broadens the molecular-weight distribution. Polymers containing long branches tend to be less crystalline than the corresponding polymers without long branches.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA