Morphology of Poly(1‐olefin)s from Poly(1‐octene) to Poly(1‐eicosene)

2001 
Poly(1-olefin)s from poly(1-octene) to poly(1-eicosene) synthesized by isospecific metallocene catalysts are investigated by wide and small angle X-ray scattering (WAXS and SAXS) and by atomic force microscopy. The crystal structure of poly(1-eicosene) is determined and the scattering peaks are assigned. Additionally, 1-dodecene is polymerized using a constrained geometry catalyst and the obtained atactic polymer is compared with the isotactic species. Using this sample it is possible to determine the amorphous halo in the small angle regime at room temperature. For poly(1-decene), poly(1-dodecene), and poly(1-hexadecene) a long period can be measured by small angle X-ray scattering which coincides with the results from AFM measurements.
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