Assembly of nanotubes of poly(4-vinylpyridine) and poly(acrylic acid) through hydrogen bonding |
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Authors: | Tian Ying He Qiang Cui Yue Tao Cheng Li Junbai |
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Affiliation: | Beijing National Laboratory for Molecular Sciences, Key Lab of Colloid and Interface Science, Center for Molecular Sciences, Chinese Academy of Sciences, Zhong Guan Cun, Beijing 100080, China. |
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Abstract: | Nanotubes of poly(4-vinylpyridine) (PVP) and poly(acrylic acid) (PAA) were fabricated by hydrogen bonding based on layer-by-layer (LbL) assembly. The uniform and flexible tubular structures were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). FTIR and X-ray photoelectron spectroscopy (XPS) measurements confirm the formation of hydrogen bonds in the assembled nanotubes. PAA can be released from the assembled PAA/PVP nanotubes in a basic aqueous solution to give the walls of the tubes a porous structure. Such assembled nanotubes can be considered as carriers for catalysts or drugs, especially in aqueous solution against capillary force. |
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Keywords: | drug delivery hydrogen bonds layer‐by‐layer assembly nanotubes polymers |
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