Micelle-like particles based on self-assembly of rod-like FPEEK and coil-like PVA |
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Authors: | Lingzhi Liu Yaming Niu Xiaoliang Zhu XiaoBo Sun Guibin Wang Zhenhua Jiang |
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Institution: | (1) College of Chemistry, Jilin University, 130012 ChangChun, People’s Republic of China |
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Abstract: | The self-assembly of a rod-like polymer hydroxyl-terminated trifluoromethylphenyl-substituted fluorinated poly(ether ether
ketone) (FPEEK)] and a coil-like polymer (polyvinyl alcohol, PVA) in water has been studied. It was found that this polymer
pair could form micelle-like particles. Hydrogen bonding between the hydroxy groups of rod-like FPEEK and coil-like PVA, and
parallel packing of the rod-like FPEEK are the main factors affecting the formation of micelle-like particles. Over a broad
range, when the FPEEK/PVA mass ratio or the tetrahydrofolate/H2O volume ratio is decreased, the diameter of micelle-like particles is decreased. The diameters (around 250 nm) of micelle-like
particles measured by scanning electron microscopy and dynamic light scattering are similar, but are different from that measured
by transmission electron microscopy (around 150 nm). Thus, it can be concluded that micelle-like particles have a core–shell
structure and the cores of micelles are composed of FPEEK, and that the shells of micelles are composed of PVA. When polyethylene
glycol was used instead of PVA, micelle-like particles were also formed, but the average diameter was bigger than that of
the particles formed by PVA and FPEEK.
This work was supported by the National Nature Science Foundation of China (50203004). |
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Keywords: | Micelle-like particle Self-assembly Rod-like FPEEK Coil-like PVA Hydrogen bonding |
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