Abstract
n-Paraffins of n-C 20H 42 to n-C 50 H 102 were epitaxially crystallized on oriented polyolefins; polyethylene, polypropylene, poly-1-butene and poly-4-methyl-1-pentene. In most cases, n-paraffin crystals were epitaxially grown on the substrate surface with the (001) basal plane parallel to it, maintaining a two-dimensional lattice coincidence with the polymer substrate. The epitaxial modes with this orientation were classified into the following three types irrespective of the polymers: 1. (1) (001) p‖SS, 〈110〉 p‖FA, 2. (2) (001) p‖SS, [010] p‖FA, 3. (3) (001) p‖SS, 〈110〉 p $ ̊ $ ̌ gaFA , where p, SS and FA denote n-paraffin crystals, substrate surface and fiber axis of the polymers, respectively. The angle α depends on the kind of polymer substrate. n-Paraffins longer than n-C 40H 82 were laid down in parallel on the polypropylene substrate with their axes at a 46° angle with respect to the substrate fiber axis.
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