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Polymer Chemistry: Pendant Groups

  • Page ID
    2913
  • [ "article:topic", "Pendant Groups" ]

    A group attached to the polymer backbone and present in the repeating unit is called a pendant group. Examples of pendant groups are the methyl group in polypropylene and the benzene ring in polystyrene.

    chain8.gif    chain3.gif

    Common Pendant Groups: (left) polypropylene and (right) polystyrene

    Polymers with pendant groups still are designated as linear polymers. The presence of pendant groups modifies the properties of a polymer.

    Contributors

    • David Whisnant (Wofford College). Partial support for this work was provided by the National Science Foundation's Division of Undergraduate Education through grants DUE #9950809 and DUE #9950296. Additional support was provided by the Camille and Henry Dreyfus Foundation.