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Type: | Artigo |
Title: | Toward A Delaminated Organotalc: The Use Of Polyamidoamine Dendrons Toward a delaminated organotalc: the use of polyamidoamine dendrons |
Author: | Andrade Jr., Marcos A. S. Pastore, Heloise O. |
Abstract: | A sequence of generations of the polyamideamine dendron, PAMAM-talc-Gn (n = 1-7), was constructed on the surfaces of ethylenediaminepropyl-functionalized magnesium phyllosilicate lamellas by using a modified microwave-assisted synthesis. The successful functionalization of the inorganic layers by the organic dendrimer was confirmed by FTIR and C-13 NMR spectroscopies, elemental analyses, and thermogravimetric analysis (TGA). The solid materials presented an increase in their interlamellar space and disorganization of lamella packing with the growth of the dendrons. Thermal-programmed desorption analysis showed that the lower dendron generation, PAMAM-talc-G1, adsorbed 1.30 mmol of CO2/g of sorbent at 30 degrees C. PAMAM-talc-G5 adsorbed the double of PAMAM-talc-G3, probably due to the higher amount of the primary amine group; however, PAMAM-talc-G5 adsorbed more CO2 than PAMAM-talc-G7 probably because in the delaminated seventh generation intradendron N-H interactions were more prevalent than in the fifth generation and blocked CO2 interaction sites. A sequence of generations of the polyamideamine dendron, PAMAM-talc-Gn (n= 1–7), was constructed on the surfaces of ethylenediaminepropyl-functionalized magnesium phyllosilicate lamellas by using a modified microwave-assisted synthesis. The successful fun |
Subject: | Organotalc Dendrimer Pamam Delamination Co2 Adsorption Organotalco Dendrímeros Dióxido de carbono Adsorção |
Country: | Estados Unidos |
Editor: | American Chemical Society |
Citation: | Acs Applied Materials & Interfaces. Amer Chemical Soc, v. 8, p. 1884 - 1892, 2016. |
Rights: | fechado |
Identifier DOI: | 10.1021/acsami.5b09963 |
Address: | https://pubs.acs.org/doi/abs/10.1021/acsami.5b09963 |
Date Issue: | 2015 |
Appears in Collections: | IQ - Artigos e Outros Documentos |
Files in This Item:
File | Size | Format | |
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000369044100041.pdf | 7.42 MB | Adobe PDF | View/Open |
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