Morphology of surfactant–polymer complexes on mica substrate visualized by atomic force microscopy

2006 ◽  
Vol 84 (11) ◽  
pp. 1557-1562 ◽  
Author(s):  
Feng Zhao ◽  
Yukou Du ◽  
Jingkun Xu ◽  
Shufeng Liu

The morphology of surfactant–polymer complexes formed in two dimensions has been studied. We found that the morphology of hexadecyltrimethylammonium bromide – modified partially hydrated polyacrylamide (CTAB–MHPAM) complexes transferred to mica from the interface between air and MHPAM aqueous solution shows pearl necklace structures, and it is orientationally aligned. On the addition of salt, this structure is altered to the dendritic fractal structure with a smaller fractal dimension about 1.1 ± 0.01. These structures have potential applications in the fabrication of materials in the nanoscale. The mechanism of the formation of different patterns has been discussed.Key words: morphology, Surfactant–polymer complexes, Dendritic fractal structure.

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1661
Author(s):  
Katarzyna Adamiak ◽  
Katarzyna Lewandowska ◽  
Alina Sionkowska

Collagen films are widely used as adhesives in medicine and cosmetology. However, its properties require modification. In this work, the influence of salicin on the properties of collagen solution and films was studied. Collagen was extracted from silver carp skin. The rheological properties of collagen solutions with and without salicin were characterized by steady shear tests. Thin collagen films were prepared by solvent evaporation. The structure of films was researched using infrared spectroscopy. The surface properties of films were investigated using Atomic Force Microscopy (AFM). Mechanical properties were measured as well. It was found that the addition of salicin modified the roughness of collagen films and their mechanical and rheological properties. The above-mentioned parameters are very important in potential applications of collagen films containing salicin.


2003 ◽  
Vol 36 (25) ◽  
pp. 9670-9674 ◽  
Author(s):  
Shin-ichiro Sakurai ◽  
Kenji Kuroyanagi ◽  
Kazuhide Morino ◽  
Masashi Kunitake ◽  
Eiji Yashima

2015 ◽  
Vol 10 (1) ◽  
pp. 155892501501000
Author(s):  
Serpil Koral Koc

Potential applications of atomic force microscopy (AFM) in textiles are explained. For this purpose samples were carefully selected from both natural and synthetic fibers. Cotton, wool, conventional polyethylene terepthalate (PET), antibacterial PET, and antistatic PET were investigated by means of 3D topography imaging, phase imaging, and calculation of their Rq values. The distribution of the additives in the cross sections of antibacterial PET and antistatic PET were analyzed. Moreover, differences between inner and outer cross section of trilobal PET was observed by force spectroscopy. The results are discussed considering the fiber properties. It is concluded that AFM is a powerful tool to investigate different properties of textile fibers, and it gives valuable information.


2010 ◽  
Vol 114 (49) ◽  
pp. 21423-21426 ◽  
Author(s):  
Takumi Hiasa ◽  
Kenjiro Kimura ◽  
Hiroshi Onishi ◽  
Masahiro Ohta ◽  
Kazuyuki Watanabe ◽  
...  

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