Premium
Morphology of Poly(1‐olefin)s from Poly(1‐octene) to Poly(1‐eicosene)
Author(s) -
Busse Karsten,
Kressler Jörg,
Knorr Jana,
Bornemann Steffen,
Arnold Manfred,
Thomann Ralf
Publication year - 2001
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/1439-2054(20010601)286:6<350::aid-mame350>3.0.co;2-t
Subject(s) - small angle x ray scattering , tacticity , materials science , octene , polymer , polymer chemistry , scattering , amorphous solid , post metallocene catalyst , polymerization , olefin fiber , crystallinity , morphology (biology) , crystallography , metallocene , copolymer , composite material , chemistry , optics , physics , biology , genetics
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.