High conducting multilayer films from poly(acrylic acid) and graphite by layer-by-layer self-assembly

2009 ◽  
Vol 31 (1) ◽  
pp. 145-151 ◽  
Author(s):  
Qunwei Tang ◽  
Qinghua Li ◽  
Jianming Lin ◽  
Shijun Fan ◽  
De Hu ◽  
...  

2010 ◽  
Vol 663-665 ◽  
pp. 252-255
Author(s):  
Xue Feng Li ◽  
Shao Xian Peng

A stable and high lubricant ultrathin film was fabricated by self-assembled procedure at room temperature. Thickness of the films was regularly increased with the layer-by-layer self-assembly process in which poly (acrylic acid)-ferric hydroxide (PAA-Fe(OH)3) sol as anion polyelectrolyte and photosensitive diazoresin (DR) as cationic polyelectrolyte. And the process which based on electrostatic attraction was verified by UV-vis measurement. Furthermore, the ionic bonds in the films converted to covalent bonds under UV irradiation. Finally, the surface morphology and microtribology of the films were investigated by atomic force microscopy (AFM) and friction force microscopy (FFM). The results indicate that the films are flat and uniform through the self-assembly technique and the surface friction coefficients maintain at a rather low value.



Langmuir ◽  
2008 ◽  
Vol 24 (9) ◽  
pp. 4800-4805 ◽  
Author(s):  
Jihuai Wu ◽  
Qunwei Tang ◽  
Hui Sun ◽  
Jianming Lin ◽  
Haiyong Ao ◽  
...  


Langmuir ◽  
2011 ◽  
Vol 28 (1) ◽  
pp. 299-306 ◽  
Author(s):  
Galiya S. Irmukhametova ◽  
Brian J. Fraser ◽  
Joseph L. Keddie ◽  
Grigoriy A. Mun ◽  
Vitaliy V. Khutoryanskiy


e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Dong Chen ◽  
Ruixue Liu ◽  
Zhifeng Fu ◽  
Yan Shi

AbstractAmphiphilic diblock copolymer poly(methyl methacrylate)-b-poly(acrylic acid) (PMMA-b-PAA) was prepared by 1,1-diphenylethene (DPE) method. Firstly, free radical polymerization of methyl methacrylate was carried out with AIBN as initiator in the presence of DPE, giving a DPE-containing PMMA precursor with controlled molecular weight. tert-Butyl acrylate (tBA) was then polymerized in the presence of the PMMA precursor, and PMMA-b-PtBA diblock copolymer with controlled molecular weight was prepared. Finally, amphiphilic diblock copolymer PMMA-b-PAA was obtained by hydrolysis of PMMA-b-PtBA. The formation of PMMA-b-PAA was confirmed by 1H NMR spectrum and gel permeation chromatography. Transmission electron microscopy and dynamic light scattering were used to detect the self-assembly behavior of the amphiphilic diblock polymers in methanol.





Langmuir ◽  
2016 ◽  
Vol 32 (27) ◽  
pp. 6836-6842 ◽  
Author(s):  
Matias Villalba ◽  
Mariano Bossi ◽  
Maria del Pozo ◽  
Ernesto J. Calvo


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