ZUSAMMENFASSUNG :Unter SUMMARY:Applying the relations for the calculation of an (AB+RAf) system given by FLORY, molecular weights and polymer conversions for hydrolytically polymerized polylaurolactam are calculated dependent on the relative solution viscosity. It is shown that the moiety of molecules which does not contain any regulator molecule must also be considered calculating Bv in the case of f 2 2 and small regulator quantities even for high conversions. The relation for wv given by FLORY neglecting this moiety of molecules is valid only as a limiting value for higher quantities of regulator or quantitative polymer conversion. The results are compared with those determined by a former simplifiad model and with experimental values.
I n Abhiingigkeit vom Umsatz sowie der Funktionalitiit und Menge des Reglers werden fur hydrolytisch polymerisiertes Polylaurinlactam Molekulargewichtsverteilungen berechnet . Die Gesamtverteilung ergibt sich durch Uberlagerung der Verteilungen von zwei Molekulsorten, die einmal kein Reglermolekul und zum anderen ein Reglermolekul eingebaut enthalten. Der Anteil der beiden Molekulsorten, das Gewichtsmittel des Molekulargewichts sowie die Uneinheitlichkeit wird zur Charakterisierung der Verteilungen herangezogen. Es wird gezeigt, daB bei kleinen Reglermengen selbst bei hohen UmsAtzen der Anteil der Molekule, die kein Reglermolekul eingebaut enthalten, so hoch sein kann, daB dadurch die Uneinheitlichkeit der Verteilung wesentlich groI3er wird als nach der von FLORY unter TTernachliissigung dieser Molekulsorte angegebenen Niiherung nW/Rn = 1 + l/f zu berechnen ist. SUMMARY:Dependent on the conversion and on the functionality and quantity of the chain regulator molecular weight distributions are calculated for hydrolytically polymerized polylaurolactam. The total distribution is given by superposition of the distributions of two species of molecules, of the molecules which do not contain any regulator molecule and of the molecules which contain a regulator molecule. The moiety of the two species of molecules, the weight average molecular weight and the nonuniformity is taken for characterizing the distributions. It is shown that for small regulator quantities even for high conversions the moiety of the molecules, which does not contain any regulator molecule may be very high. Therefore the nonuniformity of the distribution becomes remarkably higher as can be calculated applicating the simplified equation of FLORY neglecting this moiety : E w / E n = 1 + l/f.
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