scholarly journals In situ polymerization of 4-(methacryloylamino) phenyl-2-methylacrylate on the surface of silicagel

2016 ◽  
Vol 4 (2) ◽  
pp. 47-54 ◽  
Author(s):  
Elina Yanovska ◽  
Lyudmyla Vretik ◽  
Dariusz Sternik ◽  
Olga Kychkiruk ◽  
Olena Nikolaeva ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Thermogravimetric Analysis ◽  
Ir Spectroscopy ◽  
Silica Gel ◽  
In Situ Polymerization ◽  
Alkaline Media ◽  
Adsorption Activity ◽  
Quantitative Characteristics

Immobilization of 4-(methacryloylamino)phenyl-2-methylacrylate homopolymer on the silica gel surface has been carried out in situ. The structure and quantitative characteristics of immobilized polymer have been examined by IR spectroscopy, thermogravimetric analysis and mass spectrometry. Adsorption activity towards microquantitatives of Pb(II), Cu (II), Mn(II), Co(II), Ni(II) and Fe(III) ions in the range of pH 6-8,5 has been observed. Quantitative adsorption of trace Pb(II) in neutral and slightly alkaline media has been reported.

A Study On The Thermal Decomposition of Ba(tmhd)2 and Sr(tmhd)2

1995 ◽  
Vol 415 ◽  
Author(s):  
Hyun-Kyu Ryu ◽  
Jae Hyun Han ◽  
Sang Heup Moon
Keyword(s):  
Mass Spectrometry ◽  
Thermal Decomposition ◽  
Thermogravimetric Analysis ◽  
Metal Atom ◽  
Bond Energies ◽  
Partial Decomposition ◽  
Temperature Range ◽  
Long Period

ABSTRACTDecomposition of Sr(tmhd)2 and Ba(tmhd)2 was investigated by thermogravimetric analysis, in-situ FTIR, and mass spectrometry. Both compounds decomposed following 3 steps: 1) decomposition of the ligands, 2) simultaneous vaporization and partial decomposition of metal-organics, and 3) decomposition of the vaporized metal-organics which existed as the oligomeric species.The Sr source decomposed at lower temperatures and in a narrower temperature range than the Ba source. Also, the gaseous oligomeric species from the Sr source decomposed relatively quickly while the corresponding species from the Ba source decomposed slowly over a long period. Such a difference between the two compounds is due to different bond energies between the metal atom and the ligands, as indicated by our FTIR results.

Mechanistic Study of Silsesquioxane Synthesis by Mass Spectrometry and in Situ ATR FT-IR Spectroscopy

2003 ◽  
Vol 107 (42) ◽  
pp. 8885-8892 ◽  
Author(s):  
Paolo P. Pescarmona ◽  
Maria E. Raimondi ◽  
John Tetteh ◽  
Ben McKay ◽  
Thomas Maschmeyer
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Mechanistic Study ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Synthesis of polystyrene/silica gel polymer hybrids by in-situ polymerization method

1997 ◽  
Vol 39 (3) ◽  
pp. 303-310 ◽  
Author(s):  
Ryo Tamaki ◽  
Kensuke Naka ◽  
Yoshiki Chujo
Keyword(s):  
Silica Gel ◽  
In Situ Polymerization ◽  
Polymer Hybrids ◽  
Polymerization Method

Photoluminescence of Poly(P-Phenylene Vinylene) Encapsulated in Mesoporous Silica

1999 ◽  
Vol 558 ◽  
Author(s):  
Andras G. Pattantyus-Abraham ◽  
Michael O. Wolf
Keyword(s):  
Thermogravimetric Analysis ◽  
Mesoporous Silica ◽  
In Situ Polymerization ◽  
Nitrogen Adsorption ◽  
Phenylene Vinylene ◽  
Polymer Loading ◽  
Nitrogen Adsorption Isotherms ◽  
Spectrum Matching ◽  
Mcm 41

ABSTRACTThe preparation of poly(p-phenylene vinylene) (PPV) encapsulated in a mesoporous silica, MCM-41, is reported. In situ polymerization of xylylene bis(tetrahydrothiophenium chloride) yields a highly luminescent, yellow powder with a fluorescence spectrum matching that of unencapsulated PPV. Nitrogen adsorption isotherms show that the pore size of the PPV- loaded MCM-41 is significantly smaller than that of empty MCM-41 and a polymer loading of ca. 8% by weight is obtained by thermogravimetric analysis. Photoluminescence data for the encapsulated PPV are presented.

Photoluminescence of Poly(P-Phenylene Vinylene) encapsulated In Mesoporous Silica

1999 ◽  
Vol 560 ◽  
Author(s):  
Andras G. Pattantyus-Abraham ◽  
Michael O. Wolf
Keyword(s):  
Thermogravimetric Analysis ◽  
Mesoporous Silica ◽  
In Situ Polymerization ◽  
Nitrogen Adsorption ◽  
Phenylene Vinylene ◽  
Polymer Loading ◽  
Nitrogen Adsorption Isotherms ◽  
Spectrum Matching ◽  
Mcm 41

ABSTRACTThe preparation of poly(ρ-phenylene vinylene) (PPV) encapsulated in a mesoporous silica, MCM-41, is reported. In situ polymerization of xylylene bis(tetrahydrothiophenium chloride) yields a highly luminescent, yellow powder with a fluorescence spectrum matching that of unencapsulated PPV. Nitrogen adsorption isotherms show that the pore size of the PPVloaded MCM-41 is significantly smaller than that of empty MCM-41 and a polymer loading of ca. 8% by weight is obtained by thermogravimetric analysis. Photoluminescence data for the encapsulated PPV are presented.

Syntheses and Structures of Silver(I) and Palladium(II) Complexes with Ferrocenyl-phosphonodithiolate Ligands

2010 ◽  
Vol 65 (1) ◽  
pp. 32-36 ◽  
Author(s):  
Xi-Ying Wang ◽  
Hua-Tian Shi ◽  
Qing Ma ◽  
Qian-Feng Zhang
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
X Ray ◽  
X Ray Crystallography ◽  
Square Planar

Coordinative interaction of [Ag(PPh3)2NO3] or [Pd(MeCN)2Cl2] with in situ-prepared Na[FcP- (OR)S2] afforded 1 : 1 products [FcP(OR)S2Ag(PPh3)2] (R = Me 1, n-Pr 2) or the 1 : 2 product [{FcP(OMe)S2}2Pd] (3). Complexes 1 - 3 were characterized by elemental analysis, mass spectrometry, NMR (1H, 31P) and IR spectroscopy, as well as by X-ray crystallography. The distorted tetrahedral silver(I) coordination led to non-planar and distorted four-membered AgS2P rings in 1 and 2, whereas the square-planar palladium(II) coordination resulted in four-membered co-planar PdS2P rings in 3

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