Phase Behavior of Polystyrene-block-poly(2-vinylpyridine) coordinated by Metal Chloride
POSTER
Abstract
The morphology and order-to-disorder transition (ODT) of asymmetric polystyrene-block-poly(2-vinylpyridine) copolymers (PS-P2VP) varying chain length of P2VP coordinated with CdCl$_{2}$ were investigated by rheometry, synchrotron small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). D-spacing of PS-P2VP coordinated with tiny amount of CdCl$_{2}$ increased greatly. With increasing amount of CdCl$_{2}$, spherical microdomains were changed to hexagonally-packed cylinders. This is due to intra-chain coordination between CdCl$_{2}$ and pyridine ring.
*This work was supported by Creative Research Initiative Program supported by KOSEF.