Nanostructured polymer blend formed from poly(N-vinylpyrrolidone) and end-functional polystyrene |
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| Authors: | Isamu Akiba Hiroyasu Masunaga Kanako Sasaki Kyoko Shikasho Kazuo Sakurai |
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| Affiliation: | Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan |
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| Abstract: | Phase structures of blends of poly(N-vinylpyrrolidone) (PVP) with SO3H terminated polystyrene (PSS) were investigated. The PVP-PSS blends were macroscopically homogeneous, although the blends of PVP with polystyrene (PS) showed macroscopic phase separation. The PVP-PSS blends, however, showed two glass transitions indicating existence of two phases. Small-angle X-ray scattering measurements revealed the PVP-PSS blends formed mesomorphically ordered morphologies which change with variation of blend composition. The nano-organized phase separation in the PVP-PSS blends was caused due to hydrogen bonding of the PVP with the terminal SO3H group of the PSS and repulsive interaction between PVP and main chain of the PSS. |
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| Keywords: | Self-organization Polymer blend Hydrogen bonding |
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