2005
DOI: 10.1590/s0100-40422005000400029
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Preparação de compostos lamelares: síntese do hidrogenofosfato de zircônio cristalino e sua intercalação com aminas. Um experimento para estudantes de graduação

Abstract: Recebido em 23/4/04; aceito em 15/10/04; publicado na web em 17/2/05 PREPARATION OF LAMELLAR COMPOUNDS: SYNTHESIS OF THE CRYSTALLINE ZIRCONIUM HYDROGENPHOS-PHATE AND ITS INTERCALATION WITH AMINES. AN EXPERIMENT FOR UNDERGRADUATE STUDENTS.The present paper describes the synthesis of crystalline zirconium hydrogen phosphate by direct precipitation and its intercalation with pyridine and n-butylamine. The simple experiment was tested in the undergraduate inorganic chemistry laboratory course for chemistry student… Show more

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Cited by 6 publications
(2 citation statements)
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“…6 Many researches have used synthetic lamellar phosphates such as bis (acid zirconium phosphate), α-Zr (HPO 4 ) 2 .H 2 O, called α-ZrP, as synthetic fillers due to their easy intercalation compared to clays. 79 This material presents a lamellar structure and has interesting properties such as ion exchange capacity, intercalation, catalytic activity and ionic conductivity. Some of these properties are also shared by phyllosilicates – clays, but zirconium phosphate has a higher thermal stability.…”
Section: Introductionmentioning
confidence: 99%
“…6 Many researches have used synthetic lamellar phosphates such as bis (acid zirconium phosphate), α-Zr (HPO 4 ) 2 .H 2 O, called α-ZrP, as synthetic fillers due to their easy intercalation compared to clays. 79 This material presents a lamellar structure and has interesting properties such as ion exchange capacity, intercalation, catalytic activity and ionic conductivity. Some of these properties are also shared by phyllosilicates – clays, but zirconium phosphate has a higher thermal stability.…”
Section: Introductionmentioning
confidence: 99%
“…A similar behavior was observed for the system containing POSSocta and hypothetically is associated to the agglomerates that form a silicon barrier, in addition to the film hardness, which becomes it less permeable at the first hours. However, the samples containing POSStri showed potentials next to the sample DGEBA, demonstrating that the incorporation of trifunctional POSS did not influence in the barrier effect between the coating and the metal 30,31 . The increase in the nanocomposites hardness is justified by some authors, due to the formation of cross-links with the polymer chains and the epoxy resin, the functionality of POSStri and POSSocta makes the chains mobility difficult, possibly presenting free spaces, as well as forming clusters which makes the film more rigid.…”
Section: Ocpmentioning
confidence: 92%