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Orientation of Syndiotactic Polystyrene Crystallized in Cylindrical Nanopores

✍ Scribed by Hui Wu; Wei Wang; Yan Huang; Zhaohui Su

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
326 KB
Volume
30
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Syndiotactic polystyrene (sPS) nanorods with different diameters have been prepared by using anodic aluminum oxide templates, and the orientation of the sPS crystals in the nanorods has been investigated by FT‐IR spectroscopy. It is found that the c axis of the Ξ²β€² crystals preferentially oriented perpendicular to the axis of the nanorod, and the degree of orientation is lower as the diameter of the nanorod decreases. This unexpected result is attributed to nuclei formed at the surface of the nanopores and their subsequent growth, in addition to the preferential growth compatible with the pore direction by the nuclei formed in the bulk film and in the nanorods.

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