Effect of phosphine and phosphine sulfide ligands on the cobalt-catalyzed reductive coupling of 2-iodobutane with n-butyl acrylate

Polyhedron ◽  
2013 ◽  
Vol 62 ◽  
pp. 37-41 ◽  
Author(s):  
Sen-ichi Aizawa ◽  
Koichi Fukumoto ◽  
Tatsuya Kawamoto
2019 ◽  
Vol 25 (62) ◽  
pp. 14089-14100 ◽  
Author(s):  
T. Srinivasa Reddy ◽  
Deep Pooja ◽  
Steven H. Privér ◽  
Rodney B. Luwor ◽  
Nedaossadat Mirzadeh ◽  
...  

2015 ◽  
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Jérôme Bayardon ◽  
Milène Maronnat ◽  
Adam Langlois ◽  
Yoann Rousselin ◽  
Pierre D. Harvey ◽  
...  

2011 ◽  
Vol 696 (11-12) ◽  
pp. 2471-2476 ◽  
Author(s):  
Sen-ichi Aizawa ◽  
Tatsuya Kawamoto ◽  
Suji Nishigaki ◽  
Ayano Sasaki

2019 ◽  
Vol 25 (62) ◽  
pp. 14023-14023
Author(s):  
T. Srinivasa Reddy ◽  
Deep Pooja ◽  
Steven H. Privér ◽  
Rodney B. Luwor ◽  
Nedaossadat Mirzadeh ◽  
...  

Author(s):  
Gudrun A. Hutchins

In order to optimize the toughening effect of elastomers in engineering polymers, it is necessary to characterize the size, morphology and dispersion of the specific elastomer within the polymer matrix. For unsaturated elastomers such as butadiene or isoprene, staining with osmium tetroxide is a well established procedure. The residual carbon-carbon double bond in these materials is the reactive site and forms a 1,2-dilato complex with the OsO4. Incorporation of osmium tetroxide into the elastomer not only produces sufficient contrast for TEM, but also crosslinks the elastomer sufficiently so that ultramicrotomy can be accomplished at room temperature with minimal distortion.Blends containing saturated elastomers such as butyl acrylate (BA) and ethylene propylene diene monomer (EPDM) cannot be stained directly with OsO4 because effective reaction sites such as C=C or -NH2 are not available in sufficient number. If additional reaction sites can be introduced selectively into the elastomer by a chemical reaction or the absorption of a solvent, a modified, two-step osmium staining procedure is possible.


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