Polydispersity index fibers

This surprising conclusion runs counter to the findings for the mechanical behavior of plastics and fibers. In that case high molecular weights of narrow polydispersity indexes usually yield superior mechanical behavior. 

Fig. 7 compares the experimentally measured (A and C) absorption Cahs,x and (B and D) scattering Csca,x cross-sections between 400 and 700 nm of monodisperse latex spheres 2.02 and 4.5 pm diameter with Lorenz—Mie theory predictions using the complex index of refraction of latex reported by Ma et al. (2003). Flere also, the good agreement between theoretical and experimental results successfully validated the experimental setup and the data analysis. Similar vaHdation has been performed with the same polydisperse polystyrene latex microspheres and randomly oriented and infinitely long glass fibers considered for validating the scattering phase function measurements, as illustrated in Fig. 6 (Berberoglu and Pilon, 2007).

The still defficient properties of PO fibers may be improved by the production of PO, through metallocene catalysis. In these cases, polydispersity decreases from 4.5 to 2.5, the MFI index is improved, as well as tenacity and elongation to break. 

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