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MODIFICATION OF SWELLING CLAY PARTICLES WITH CHLOROSILANES

Credit to Download: 1 | Page Numbers 7 | Abstract Views: 818
Year: 2014
COI code: TCPCO01_024
Paper Language: English

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Authors MODIFICATION OF SWELLING CLAY PARTICLES WITH CHLOROSILANES

  s Sepehri - Polymer department, Amirkabir University of Technology, 424 Hafez Ave,Tehran, Iran
  M Rafizadeh - Polymer department, Amirkabir University of Technology
M Hemmati - 3Polymer department of Research institute of Petroleum of Iran
H Buhendi - Iran Polymer & petrochemical Institute, 15th km of Karaj highway, Tehran,

Abstract:

Silylation of clay mineral surfaces has attracted much attention due to their extensive applications in materials science and environmental engineering. Cloisite Na+ was modified with trichlorovinylsilane and dimethylchlorovinylsilane in order to replace the silanol groups of the Cloisite Na+. Grafting was confirmed by FTIR, XRD and TGA. The effects ofconcentration of silane and presence of NaHCO3 in the reaction media on grafting amount andbasal spacing was studied. When NaHCO3 is present the reaction was mostly done on the edge silanol groups. The most grafting amount is obtained in silylation with 4mmol/g of monofunctional silane. These modified nanosilicates can later be used in preparation of water soluble nanocomposites, in that they have vinyl groups which could participate in in situ preparation of these nanocomposites

Keywords:

Organosilane, Na-MMT, Silylation, Grafting

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COI code: TCPCO01_024

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Sepehri, s; M Rafizadeh; M Hemmati & H Buhendi, 2014, MODIFICATION OF SWELLING CLAY PARTICLES WITH CHLOROSILANES, The First National Conference of New Technologies in Chemical and Petrochemical, تهران, شركت هم انديشان چرخه علم و صنعت, https://www.civilica.com/Paper-TCPCO01-TCPCO01_024.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Sepehri, s; M Rafizadeh; M Hemmati & H Buhendi, 2014)
Second and more: (Sepehri; Rafizadeh; Hemmati & Buhendi, 2014)
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Type: state university
Paper No.: 18522
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