Abstract
A self healing composite material consisting of 5-Ethylidene-2-Norbornene (5E2N) monomer reacted with Ruthenium Grubbs' Catalyst (RGC) was prepared. First, the kinetics of the 5E2N ring opening metathesis polymerization (ROMP) reaction RGC was studied as a function of temperature. We show that the polymerization reaction is still effective in a large temperature range (-15 to 45°C), occurring at short time scales (less than 1 min at 40°C). Second, the amount of RGC required for ROMP reaction significantly decreased through its nanostructuration by means of a UV-excimer laser ablation process. RGC nanostructures of few nanometers in size where successfully obtained directly on silicon substrates. The X-ray photoelectron spectroscopy data strongly suggest that the RGC still keep its original stoichiometry after nanostructuration. More importantly, the associated ROMP reaction was successfully achieved at an extreme low RGC concentration equivalent to (11.16 ± 1.28) × 10 -4 Vol.%, occurring at very short time reaction. This approach opens new prospects for using healing agent nanocomposite materials for self-repair functionality, thereby obtaining a higher catalytic efficiency per unit mass.
| Original language | English |
|---|---|
| Pages (from-to) | 9800-9804 |
| Number of pages | 5 |
| Journal | Applied Surface Science |
| Volume | 258 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 1 Oct 2012 |
| Externally published | Yes |
Fingerprint
Keywords
- Grubbs' catalyst
- Laser ablation
- Nanocomposite
- Nanostructures
- Self-healing materials
ASJC Scopus subject areas
- Surfaces, Coatings and Films
Cite this
Ruthenium Grubbs' catalyst nanostructures grown by UV-excimer-laser ablation for self-healing applications. / Aissa, Brahim; Nechache, R.; Haddad, E.; Jamroz, W.; Merle, P. G.; Rosei, F.
In: Applied Surface Science, Vol. 258, No. 24, 01.10.2012, p. 9800-9804.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ruthenium Grubbs' catalyst nanostructures grown by UV-excimer-laser ablation for self-healing applications
AU - Aissa, Brahim
AU - Nechache, R.
AU - Haddad, E.
AU - Jamroz, W.
AU - Merle, P. G.
AU - Rosei, F.
PY - 2012/10/1
Y1 - 2012/10/1
N2 - A self healing composite material consisting of 5-Ethylidene-2-Norbornene (5E2N) monomer reacted with Ruthenium Grubbs' Catalyst (RGC) was prepared. First, the kinetics of the 5E2N ring opening metathesis polymerization (ROMP) reaction RGC was studied as a function of temperature. We show that the polymerization reaction is still effective in a large temperature range (-15 to 45°C), occurring at short time scales (less than 1 min at 40°C). Second, the amount of RGC required for ROMP reaction significantly decreased through its nanostructuration by means of a UV-excimer laser ablation process. RGC nanostructures of few nanometers in size where successfully obtained directly on silicon substrates. The X-ray photoelectron spectroscopy data strongly suggest that the RGC still keep its original stoichiometry after nanostructuration. More importantly, the associated ROMP reaction was successfully achieved at an extreme low RGC concentration equivalent to (11.16 ± 1.28) × 10 -4 Vol.%, occurring at very short time reaction. This approach opens new prospects for using healing agent nanocomposite materials for self-repair functionality, thereby obtaining a higher catalytic efficiency per unit mass.
AB - A self healing composite material consisting of 5-Ethylidene-2-Norbornene (5E2N) monomer reacted with Ruthenium Grubbs' Catalyst (RGC) was prepared. First, the kinetics of the 5E2N ring opening metathesis polymerization (ROMP) reaction RGC was studied as a function of temperature. We show that the polymerization reaction is still effective in a large temperature range (-15 to 45°C), occurring at short time scales (less than 1 min at 40°C). Second, the amount of RGC required for ROMP reaction significantly decreased through its nanostructuration by means of a UV-excimer laser ablation process. RGC nanostructures of few nanometers in size where successfully obtained directly on silicon substrates. The X-ray photoelectron spectroscopy data strongly suggest that the RGC still keep its original stoichiometry after nanostructuration. More importantly, the associated ROMP reaction was successfully achieved at an extreme low RGC concentration equivalent to (11.16 ± 1.28) × 10 -4 Vol.%, occurring at very short time reaction. This approach opens new prospects for using healing agent nanocomposite materials for self-repair functionality, thereby obtaining a higher catalytic efficiency per unit mass.
KW - Grubbs' catalyst
KW - Laser ablation
KW - Nanocomposite
KW - Nanostructures
KW - Self-healing materials
UR - http://www.scopus.com/inward/record.url?scp=84864682918&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864682918&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2012.06.032
DO - 10.1016/j.apsusc.2012.06.032
M3 - Article
AN - SCOPUS:84864682918
VL - 258
SP - 9800
EP - 9804
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
IS - 24
ER -