Synthesis and characterization of titanium complexes covalently bonded to silica support and their catalytic properties in ethylene (co)polymerization

2017 ◽  
Vol 20 ◽  
pp. 35-41
Author(s):  
Julia Fryga ◽  
Marzena Białek ◽  
Grzegorz Spaleniak
Keyword(s):  
Catalytic Properties ◽  
Synthesis And Characterization ◽  
Silica Support ◽  
Titanium Complexes ◽  
Covalently Bonded

Synthesis and Characterization of Chiral Conducting Polymers Based on Polypyrrole

1997 ◽  
Vol 50 (9) ◽  
pp. 939 ◽  
Author(s):  
Fang Chen ◽  
Parveen Akhtar ◽  
Leon A. P. Kane-Maguire ◽  
Gordon G. Wallace
Keyword(s):  
Conducting Polymers ◽  
Propionic Acid ◽  
Spectroscopic Properties ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Chiroptical Properties ◽  
Covalently Bonded ◽  
Circular Dichroïsm ◽  
Ring Position

A range of optically active pyrrole monomers have been synthesized in which a chiral sub- stituent is covalently bonded either to the pyrrole N or C3 ring position, namely (–)-(1R)-4-methyl-N-(1-phenylethyl)pyrrole-3-carboxamide, (+)-(1S)-4-methyl-N-(1-phenylethyl)pyrrole-3-carboxamide, (–)-(1R)-4-methyl-N-(1-naphthylethyl)pyrrole-3-carboxamide, (+)-(1S)-4-methyl-N-(1-naphthylethyl)pyrrole-3-carboxamide, (+)-(2S)-2-(1H-pyrrol-1-yl)propionic acid, (+)-(1S)-N-(1-phenyl-ethyl)pyrrole, and (–)-(1R)-N-(1-phenylethyl)pyrrole. Their chiroptical properties have been established by circular dichroism spectroscopy. Electropolymerization of the three N-substituted pyrrole monomers provided films of chiral conducting polymers, whose electrical and spectroscopic properties are described. Although oxidation of the C3 substituted pyrrole monomers was also facile, electrodeposition was poor and films of the associated polymers could not be obtained.

Synthesis and characterization of chromium complexes 2-Me4CpC6H4CH2(R)NHCrCl2 and their catalytic properties in ethylene homo- and co-polymerization

2019 ◽  
Vol 48 (15) ◽  
pp. 4912-4920 ◽  
Author(s):  
Tingting Song ◽  
Xin Tao ◽  
Xiaobo Tong ◽  
Ning Liu ◽  
Wei Gao ◽  
...  
Keyword(s):  
Secondary Amine ◽  
Olefin Polymerization ◽  
Catalytic Properties ◽  
Synthesis And Characterization ◽  
Chromium Complexes

New half-metallocene chromium complexes with a coordinated secondary amine side-arm were synthesized and studied as catalysts for olefin polymerization.

One-pot synthesis and characterization of HMS silica carrying Disperse-Red-1 (DR1) covalently bonded to the inner surface

2005 ◽  
Vol 8 (3-4) ◽  
pp. 655-661 ◽  
Author(s):  
Barbara Onida ◽  
Luisa Borello ◽  
Sonia Fiorilli ◽  
Barbara Bonelli ◽  
Claudia Barolo ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
One Pot ◽  
One Pot Synthesis ◽  
Covalently Bonded ◽  
Inner Surface ◽  
Disperse Red 1

Synthesis and Characterization of Magnesium Phosphates and Their Catalytic Properties in the Conversion of 2-Hexanol

1999 ◽  
Vol 217 (2) ◽  
pp. 288-298 ◽  
Author(s):  
Marı́a Angeles Aramendı́a ◽  
Victoriano Borau ◽  
César Jiménez ◽  
José Marı́a Marinas ◽  
Francisco José Romero
Keyword(s):  
Catalytic Properties ◽  
Synthesis And Characterization ◽  
Magnesium Phosphates

scholarly journals Synthesis and Characterization of Novel Tridentate [NOP] Titanium Complexes and Their Application to Copolymerization and Polymerization of Ethylene

2006 ◽  
Vol 25 (14) ◽  
pp. 3520-3520 ◽  
Author(s):  
Wei-Qiu Hu ◽  
Xiu-Li Sun ◽  
Cong Wang ◽  
Yuan Gao ◽  
Yong Tang ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Titanium Complexes
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