Ni-exchanged montmorillonite with methyl-, dimethyl- and trimethylamine and their thermal properties

Autor:	V. Jorik, S. Šnircová, D. Ondrušová, M. Drábik, M. Pajtášová, L’. Lajdová, S. C. Mojumdar, E. Jóna
Rok vydání:	2009
Předmět:	Steric effects Methylamine Thermal decomposition Inorganic chemistry Trimethylamine Condensed Matter Physics Thermogravimetry chemistry.chemical_compound Montmorillonite chemistry Polymer chemistry Physical and Theoretical Chemistry Thermal analysis Dimethylamine
Zdroj:	Journal of Thermal Analysis and Calorimetry. 96:63-66
ISSN:	1572-8943 1388-6150
DOI:	10.1007/s10973-008-9839-8
Popis:	The influence of different steric properties of methylamine (MA), dimethylamine (DIMA) and trimethylamine (TRMA) on the type of interactions with Ni-exchanged montmorillonite and thermal properties of these materials were studied. The results of diffraction, spectral (IR) and thermal (TG, DTG) analysis show that MA, DIMA and TRMA are intercalated into the interlayer space of montmorillonite. Thermal decomposition in the temperature interval 20–450°C of studied samples with MA and DIMA proceeds in three steps (the release of chemisorbed amines, coordinated amines and alkylammonium cations) while the sample with TRMA decompose only in two steps (the peak corresponds to the release of coordinated TRMA is absent). The effect of different steric properties of individual amines is evident.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b82bfad5c496d785c8600adaf2694db1 https://doi.org/10.1007/s10973-008-9839-8 Zobrazit plný text záznamu Plný text ve formátu PDF