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Organoclays with Carbosilane Dendrimers Containing Ammonium or Phosphonium Groups

Abstract

New composite materials could reveal attractive capabilities and favourable properties. Here we present a novel layered nanocomposites consisting of inorganic clay (montmorillonite) and cationic carbosilane dendrimers. Comparative study was performed in order to evaluate cationic moieties (ammonium or phosphonium) and various generations of dendrimers (first, second and third) and their influence on characteristics of resulting materials. The target nanocomposites were characterized by XRD, TEM, TGA, IR and MAS NMR. As interesting aspect of multivalent dendritic cations as compared to monovalent ones a new connection of cationic species to inorganic matrix were detected by both ammonium and phosphonium dendrimers. To evaluate the mechanism of thermal degradation of prepared materials, non-oxidative pyrolysis coupled with analysis of resulting products by IR and MS was performed. As illustration of catalytic activity of prepared materials selected sample was tested as catalyst of cycloaddition of CO2 with epoxide (allyl glycidyl ether).

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Publication details

The article was received on 15 Oct 2017, accepted on 04 Dec 2017 and first published on 04 Dec 2017


Article type: Paper
DOI: 10.1039/C7NJ03979D
Citation: New J. Chem., 2017, Accepted Manuscript
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    Organoclays with Carbosilane Dendrimers Containing Ammonium or Phosphonium Groups

    M. Müllerová, S. Šabata, J. Matoušek, M. Kormunda, J. Holubová, R. Bálková, R. Petrickovic, M. Kostejn, J. Kupčík, R. Fajgar and T. Strašák, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ03979D

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