macromonomer 

https://doi.org/10.1351/goldbook.M03668
Polymer or oligomer the molecules of which each have one end-group that acts as a monomer molecule, so that each polymer or oligomer molecule contributes only a single monomer unit to a chain of the product polymer.
Notes:
  1. The homopolymerization or copolymerization of a macromonomer yields a comb or graft polymer.
  2. Macromonomers are also sometimes referred to as macromers. The use of the term 'macromer' is strongly discouraged.
Source:
PAC, 2004, 76, 889. (Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)) on page 896 [Terms] [Paper]
Citation: 'macromonomer' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.M03668 RIS BibTex EndNote
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Last revised: February 24, 2014