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Polymerization number

Calculate the degree of polymerization, number-average, and weight-average molecular weights given kinetic data for a polymerization reaction. [Pg.216]

Finally, the equations for the most probable distribution can be used to calculate various average degrees of polymerization number, weight, z, etc. Earlier, we derived an equation for the number average in a very simple way. The method shown in Figures 5-9 and 5-10 is more complicated. Its value is that, unlike the simple approach, it... [Pg.119]

Examples include control of molecular weight in step-growth polymerization, number-average degree of polymerization in step-growth polymerization of nonstoichio-metric monomer mixtures, free-radical and anionic polymerizations of styrene, and ethene oligomerization to linear 1-olefins in the Shell Higher Olefins Process. [Pg.349]

Bukatov, G.D Zakharov, V.A. Propylene Ziegler-Natta polymerization numbers and propagation rate constants for stereospecific and non-stereospecific centers. Macromol. Chem. Phys. 2001, 202, 2003-2009. [Pg.3258]

Specific rotation in aqueous alkali, usually sodium hydroxide. Number-average degree of polymerization (number of xylose residues in the xylan backbone). 0-Acetyl-(4-0-methylglucurono)xylan. In water. [Pg.269]

The quantity — — is taken as the average degree of polymerization. Number (1-p)... [Pg.501]

X degree of polymerization, number structural units/chain... [Pg.66]

Researched experiment results showed suf Cbiently high accuracy of accounts with the use of Equation (5). It was shown that for all experimental objects hyperelastic state constant does not depend on temperature within error of experimental data (Table ), though it is values rise with increase of hardeners molar ratio, in other words with growth of polymerization number average degree of cross-site chains and synchronous decrease of mesh points concentration. [Pg.78]

X = degree of polymerization = number fraction of molecules of length x... [Pg.27]

FIGURE 6.14 Structural scheme of the PVP molecule. Here, n represents the polymerization number, n = 360 for PVPK30 (adapted from Reference 174). [Pg.117]

DP Degree of polymerization number of monomeric units in a polymer chain. Is usually calculated from the total molecular weight of the polymer divided by that of the monomer... [Pg.898]

The degree of polymerization (number of connected phthalocyanine rings) were carried out by exact end group determination using the IR spectroscopy method. [Pg.701]

See other pages where Polymerization number is mentioned: [Pg.386]    [Pg.669]    [Pg.91]    [Pg.20]    [Pg.44]    [Pg.50]    [Pg.148]    [Pg.173]    [Pg.3]    [Pg.611]    [Pg.89]    [Pg.310]    [Pg.5]    [Pg.92]    [Pg.279]    [Pg.587]    [Pg.119]    [Pg.29]    [Pg.2358]    [Pg.5]    [Pg.259]    [Pg.456]    [Pg.201]    [Pg.141]    [Pg.414]    [Pg.519]    [Pg.201]    [Pg.244]    [Pg.41]    [Pg.259]    [Pg.386]    [Pg.371]    [Pg.181]    [Pg.111]   


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