Growth rate against crystallization

Fig. 9.9 Plot of spherulite growth rates against crystallization temperature for indicated molecular weights. (From Magill (24))...

Fig. 9.88 Plots of log growth rate against crystallization temperature for poly(ethylene oxide) molecular weight fractions, (a) Af = 1890 (b) Afn = 2780 (c) Mn = 3900 (d) = 9970. extended chain crystallites o folded chain...

Fig. 9.91 Plot of In growth rate against crystallization temperature for two iinear polyethylene fractions. Circles Mw = 3900, = 3390 squares Mw = 5800,...

Fig. 9.93 Plot of log growth rate against crystallization temperature for two low molecular weight fractions of isotactic poly(propylene) a A/ = 2000 A Mn =...

Fig. 10.36 Plot of spherulite growth rate against crystallization temperature for copolyimides described in text for indicated 134APB/C12 compositions. (From Hsaio et al. (83))...

Fig. 13.27 Plot of growth rate against crystallization temperature for a linear polyethylene fraction, A/w = 4050, crystallizing from p-xylene at indicated concentrations. (From Leung et al. (52))...

Fig. 9.8 Plot of spherulite growth rates against time for poly(ethylene adipate), M = 9900, at indicated crystallization temperatures. (From Takayanagi (23))...

Discontinuities are also observed in plots of the growth rate against the crystallization temperature for low molecular weight polymers. The polymers studied... 

The relation between the growth rate and crystallization temperature of low molecular weight fractions of isotactic poly(propylene) follows a pattern similar to poly(ethylene oxide) and polyethylene. Figure 9.93 is a plot of log growth rate against the crystallization temperature for two fractions of isotactic poly (propylene), M = 20(X) and = 3000.(319) The curves are similar to those of the other... 

As shown by Eq. (54), growth rate G can be obtained from the slope of a plot of the log of population density against crystal size nucleation rate B° can be obtained from the same data by using the relationship given by Eq. (57), with n° being the intercept of the population density plot. Nucleation rates obtained by these procedures should be checked by comparison with values obtained from a mass balance (see the later discussion of Eq. (66)). 

Fig. 4.29 (a) Lamellar growth rates for PEO as function of crystallization temperature Tc (inset lamellar dimensions vs. crystallization time) and (b) lamellar thickness plotted against inverse undercooling. The linear fit of the lamellar thickness vs. inverse undercooling plot with the boundary condition (0,0) yields a satisfactory result. Adapted with permission from [52]. Copyright 2002. American Chemical Society... 

The use of Eq. (3.24) is illustrated in Figure 3.22, where the measured face growth rates of ammonium dihydrogen phosphate crystals are plotted against the inverse of the concentration of impurities (AICI3 and FeCl3). Both sets of data are consistent with Eq. (3.24), which predicts vi = 0 at high impurity concentration... 

The shape factor a results from the particle volume m a = Kp/Z. In Fig. 8.3-7 the nucleation rate B related to the volumetric crystal concentration cpj (Pj = volume of all crystals/volume of the suspension) is plotted against the average rate of crystal growth with the average crystal size Z50 as a parameter. With the relation... 

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