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- Degree_of_polymerization abstract "The degree of polymerization, or DP, is usually defined as the number of monomeric units in a macromolecule or polymer or oligomer molecule.For a homopolymer, there is only one type of monomeric unit and the number-average degree of polymerization is given by ,where Mn is the number-average molecular weight and M0 is the molecular weight of the monomer unit. For most industrial purposes, degrees of polymerization in the thousands or tens of thousands are desired.Some authors, however, define DP as the number of repeat units, where for copolymers the repeat unit may not be identical to the monomeric unit. For example, in nylon-6,6, the repeat unit contains the two monomeric units —NH(CH2)6NH— and —OC(CH2)4CO—, so that a chain of 1000 monomeric units corresponds to 500 repeat units. The degree of polymerization or chain length is then 1000 by the first (IUPAC) definition, but 500 by the second.In step-growth polymerization, in order to achieve a high degree of polymerization (and hence molecular weight), Xn, a high fractional monomer conversion, p, is required, as per Carothers' equation: Xn = 1/(1−p). A monomer conversion of p = 99% would be required to achieve Xn = 100. For chain-growth polymerization, however, this is not generally true and long chains are formed for much lower monomer conversions.".
- Degree_of_polymerization thumbnail Degree_of_polymerization.png?width=300.
- Degree_of_polymerization wikiPageID "2414080".
- Degree_of_polymerization wikiPageRevisionID "571267040".
- Degree_of_polymerization hasPhotoCollection Degree_of_polymerization.
- Degree_of_polymerization quote "The number of monomeric units in a macromolecule an oligomer molecule, a block, or a chain.".
- Degree_of_polymerization title "IUPAC definition".
- Degree_of_polymerization subject Category:Polymer_chemistry.
- Degree_of_polymerization comment "The degree of polymerization, or DP, is usually defined as the number of monomeric units in a macromolecule or polymer or oligomer molecule.For a homopolymer, there is only one type of monomeric unit and the number-average degree of polymerization is given by ,where Mn is the number-average molecular weight and M0 is the molecular weight of the monomer unit.".
- Degree_of_polymerization label "Degree of polymerization".
- Degree_of_polymerization label "Degré de polymérisation".
- Degree_of_polymerization label "Grado de polimerización".
- Degree_of_polymerization label "Grado di polimerizzazione".
- Degree_of_polymerization label "Polymerisationsgrad".
- Degree_of_polymerization label "Степень полимеризации".
- Degree_of_polymerization label "درجة الكوثرة".
- Degree_of_polymerization sameAs Polymerisationsgrad.
- Degree_of_polymerization sameAs Grado_de_polimerización.
- Degree_of_polymerization sameAs Degré_de_polymérisation.
- Degree_of_polymerization sameAs Grado_di_polimerizzazione.
- Degree_of_polymerization sameAs m.07bdst.
- Degree_of_polymerization sameAs Q662950.
- Degree_of_polymerization sameAs Q662950.
- Degree_of_polymerization wasDerivedFrom Degree_of_polymerization?oldid=571267040.
- Degree_of_polymerization depiction Degree_of_polymerization.png.
- Degree_of_polymerization isPrimaryTopicOf Degree_of_polymerization.
