The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocomposites
Polycarbonate-based polyurethane (PC-PUs) hybrid materials were obtained by the addition of organically modified bentonite and montmorillonite (1 w/w %). PC-PUs and their nanocomposites were prepared using prepolymerization with two polycarbonate diols (both of Mr ca 1000) differing in chain constit...
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| Format: | Article |
| Language: | English |
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Society of Chemists and Technologists of Macedonia
2013-12-01
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| Series: | Macedonian Journal of Chemistry and Chemical Engineering |
| Subjects: | |
| Online Access: | https://mjcce.org.mk/index.php/MJCCE/article/view/442 |
| _version_ | 1818926221761708032 |
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| author | Jelena Pavličević Milena Špírková Oskar Bera Mirjana Jovičić Katalin Mészáros Szécsényi Jaroslava Budinski-Simendić |
| author_facet | Jelena Pavličević Milena Špírková Oskar Bera Mirjana Jovičić Katalin Mészáros Szécsényi Jaroslava Budinski-Simendić |
| author_sort | Jelena Pavličević |
| collection | DOAJ |
| description | Polycarbonate-based polyurethane (PC-PUs) hybrid materials were obtained by the addition of
organically modified bentonite and montmorillonite (1 w/w %). PC-PUs and their nanocomposites were
prepared using prepolymerization with two polycarbonate diols (both of Mr ca 1000) differing in chain
constitution, hexamethylene-diisocyanate and 1,4-butane diol (chain extender) as starting components. All samples contained the same hard-segment content (30 w/w %). Thermogravimetry coupled with differential scanning calorimetry (TG-DSC) was performed to obtain information about the organoclays addition on the thermal stability of the prepared polyurethane elastomers. The effect of bentonite and montmorillonite nanofillers on the decomposition pattern has been evaluated. By deconvolution of derivative thermogravimetric (DTG) curves, it has been found that the thermal decomposition of polyurethane samples takes place in three overlapping processes. Degradation kinetic parameters (activation energy and reaction order) were calculated on the basis of thermal data obtained at only one heating rate. |
| first_indexed | 2024-12-20T02:53:41Z |
| format | Article |
| id | doaj.art-4838a85d89794f4da4478ce94cab5036 |
| institution | Directory Open Access Journal |
| issn | 1857-5552 1857-5625 |
| language | English |
| last_indexed | 2024-12-20T02:53:41Z |
| publishDate | 2013-12-01 |
| publisher | Society of Chemists and Technologists of Macedonia |
| record_format | Article |
| series | Macedonian Journal of Chemistry and Chemical Engineering |
| spelling | doaj.art-4838a85d89794f4da4478ce94cab50362022-12-21T19:55:57ZengSociety of Chemists and Technologists of MacedoniaMacedonian Journal of Chemistry and Chemical Engineering1857-55521857-56252013-12-0132210.20450/mjcce.2013.442194The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocompositesJelena Pavličević0Milena Špírková1Oskar Bera2Mirjana Jovičić3Katalin Mészáros Szécsényi4Jaroslava Budinski-Simendić5Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi SadInstitute of Macromolecular Chemistry AS CR v.v.i., Prague,Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi SadFaculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi SadFaculty of Sciences, University of Novi Sad, Novi SadFaculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi SadPolycarbonate-based polyurethane (PC-PUs) hybrid materials were obtained by the addition of organically modified bentonite and montmorillonite (1 w/w %). PC-PUs and their nanocomposites were prepared using prepolymerization with two polycarbonate diols (both of Mr ca 1000) differing in chain constitution, hexamethylene-diisocyanate and 1,4-butane diol (chain extender) as starting components. All samples contained the same hard-segment content (30 w/w %). Thermogravimetry coupled with differential scanning calorimetry (TG-DSC) was performed to obtain information about the organoclays addition on the thermal stability of the prepared polyurethane elastomers. The effect of bentonite and montmorillonite nanofillers on the decomposition pattern has been evaluated. By deconvolution of derivative thermogravimetric (DTG) curves, it has been found that the thermal decomposition of polyurethane samples takes place in three overlapping processes. Degradation kinetic parameters (activation energy and reaction order) were calculated on the basis of thermal data obtained at only one heating rate.https://mjcce.org.mk/index.php/MJCCE/article/view/442polycarbonate-based polyurethane nanocompositeslayered silicatesdtgthermal stability |
| spellingShingle | Jelena Pavličević Milena Špírková Oskar Bera Mirjana Jovičić Katalin Mészáros Szécsényi Jaroslava Budinski-Simendić The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocomposites Macedonian Journal of Chemistry and Chemical Engineering polycarbonate-based polyurethane nanocomposites layered silicates dtg thermal stability |
| title | The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocomposites |
| title_full | The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocomposites |
| title_fullStr | The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocomposites |
| title_full_unstemmed | The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocomposites |
| title_short | The influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane/organoclay nanocomposites |
| title_sort | influence of bentonite and montmorillonite addition on thermal decomposition of novel polyurethane organoclay nanocomposites |
| topic | polycarbonate-based polyurethane nanocomposites layered silicates dtg thermal stability |
| url | https://mjcce.org.mk/index.php/MJCCE/article/view/442 |
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