Assembly of nanotubes of poly(4-vinylpyridine) and poly(acrylic acid) through hydrogen bonding.
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.
Tian
Ying
Y
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.
He
Qiang
Q
Cui
Yue
Y
Tao
Cheng
C
Li
Junbai
J
D000180:Acrylic Resins / Q000737:chemistry*; D004337:Drug Carriers / Q000737:chemistry*; D006860:Hydrogen Bonding; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
D000180:Acrylic Resins; D004337:Drug Carriers; D011145:Polyvinyls; C019535:poly(4-vinylpyridine); C006903:carbopol 940