Degree of polymerization

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The degree of polymerization (DP) is the number of monomers in the polymer molecule. The degree of polymerization, or chain length, of a polymer affects many of its properties, such as solution viscosity, density, strength, flexibility and porosity.

Synonyms and Related Terms

DP; grado de polimerización (Esp.); degré de polymérisation (Fr.); gradi di polimerizzazione (It.); grau de polimerização (Port.)


  • Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990

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