Development of Oxidized Sulfur Polymer Films through a Combination of Plasma Polymerization and Oxidative Plasma Treatment

Langmuir ◽  
2014 ◽  
Vol 30 (5) ◽  
pp. 1444-1454 ◽  
Author(s):  
Behnam Akhavan ◽  
Karyn Jarvis ◽  
Peter Majewski
2003 ◽  
Vol 791 ◽  
Author(s):  
Peng He ◽  
Jie Lian ◽  
Donglu Shi ◽  
Lumin Wang ◽  
Wim van Ooij ◽  
...  

ABSTRACTUltrathin polymer films have been deposited on both multi-wall and aligned carbon nanotubes using a plasma polymerization treatment. TEM experimental results showed that a thin film of polystyrene layer (several nanometers) was uniformly deposited on the surfaces of the nanotubes including inner wall surfaces of the multi-wall nanotubes. The coated multi-wall nanotubes were mixed in polymer solutions for studying the effects of plasma coating on dispersion. It was found that the dispersion of multi-wall carbon nanotubes in polystyrene composite was significantly improved. The deposition mechanisms and the effects of plasma treatment parameters are discussed.


2001 ◽  
Vol 635 ◽  
Author(s):  
Donglu Shi ◽  
Zhou Yu ◽  
S. X. Wang ◽  
Wim J. van Ooij ◽  
L. M. Wang ◽  
...  

AbstractMulti-layer ultrathin polymer films have been deposited on the surfaces of nanoparticles of alumina using a plasma polymerization treatment. The nanoparticles ranged from 10-150 nm in spherical shapes. High-resolution transmission electron microscopy (HRTEM) experiments showed that an extremely thin film of the pyrrole layer (10-20 Å) was uniformly deposited on the surfaces of the nanoparticles. In particular, the particles of all sizes (10-150 nm) exhibited equally uniform ultrathin films indicating well-dispersed nanoparticles in the fluidized bed during the plasma treatment. After single layer coating, hexamethyldisiloxane (HMDSO) was coated again as a second layer onto the surface of pyrrole. Subsequently, a third layer of pyrrole was coated on the top of HMDSO film completing the multi-layer coating process. Time-of-Flight Secondary ion mass spectroscopy (TOFSIMS) experiments confirmed the deposition of these multi-layer thin films on the nanoparticles. The deposition mechanisms and the effects of plasma treatment parameters are discussed.


2002 ◽  
Vol 740 ◽  
Author(s):  
Peng He ◽  
Jie Lian ◽  
Donglu Shi ◽  
Lumin Wang ◽  
David Mast ◽  
...  

ABSTRACTUltrathin polymer films have been deposited on both single- and multi-wall carbon nanotubes using a plasma polymerization treatment. HRTEM experiments showed that an extremely thin film of the pyrrole layer (2–7 nm) was uniformly deposited on the surfaces of the nanotubes including inner wall surfaces of the multi-wall nanotubes. Time-of-Flight Secondary ion mass spectroscopy (TOFSIMS) experiments confirmed the nanosurface deposition of polymer thin films on the nanotubes. The deposition mechanisms and the effects of plasma treatment parameters are discussed.


Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 577 ◽  
Author(s):  
Wilma Dierkes ◽  
André Louis ◽  
Jacques Noordermeer ◽  
Anke Blume

Adhesion of cords to elastomers is crucial for many elastomeric products, such as tires and V-belts. The best adhesion system so far is based on a combination of resorcinol, formaldehyde, and a latex (RFL). However, this cord treatment has serious disadvantages in terms of processing and toxicity. A promising alternative is a plasma treatment of the cords prior to be embedded in the elastomer. For rayon cords, a plasma polymerization of sulfur-containing precursors results in adhesion levels close to RFL treatment. However, for polyethylene terephthalate (PET) cords, this treatment is not satisfactory. For this type of cords, a water-plasma activation followed by a silane dip is more promising, as 72% of the adhesion level of RFL treatment could be achieved. For rayon, an even higher adhesion level was realized.


2001 ◽  
Vol 78 (9) ◽  
pp. 1243-1245 ◽  
Author(s):  
Donglu Shi ◽  
S. X. Wang ◽  
Wim J. van Ooij ◽  
L. M. Wang ◽  
Jiangang Zhao ◽  
...  

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