Thermal studies of zinc and cadmium halide complexes with N-tert-alkylacrylamides |
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Authors: | J Żurakowska-Orszagh K Mirowski H Wilczura |
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Institution: | (1) Department of Chemistry, University of Warsaw, ul. Pasteura 1, 02-093 Warszawa, Poland |
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Abstract: | The thermal properties of complexes of N-tert-butylacrylamide and N-tert-amylacrylamide with ZnCl2, ZnBr2, CdCl2 and CdBr2 have been studied in air and in argon by TG and DTA. The decomposition proceeds in two steps with evolution of simple, low molecular weight gaseous products. The use of various heating rates revealed an additional exothermic DTA peak for complexes with zinc and cadmium chlorides corresponding to a solid state polymerization reaction which was confirmed by IR spectral analysis. This effect was not observed for corresponding complexes of zinc and cadmium bromides, which show much lower thermal stability.
Zusammenfassung Die thermischen Eigenschaften der Komplexe von N-Tertbutylacrylamid und N-Tertamylacrylamid mit ZnCl2, ZnBr2, CdCl2 und CdBr2 wurden in Luft und in Argon durch TG und DTA studiert. Die Zersetzung verläuft in zwei Stufen unter Entwicklung einfacher gasförmiger Produkte niedriges Molekulargewichts. Der Einsatz verschiedener Aufheizgeschwindigkeiten zeigte für Komplexe mit Zink- und Cadmiumchloriden einen zusätzlichen DTA Peak, der Festphasen-Polymerisationsreaktion entsprechend, welche durch IR-Spektralanalyse bestätigt wurde. Dieser Effekt wurde bei den entsprechenden Komplexen der Zink- und Cadmiumbromide, welche eine viel geringere Thermostabilität besitzen, nicht beobachtet.
Résumé On a étudié, par TG et ATD, dans l'air et l'argon, les propriétés thermiques des complexes du N-tertbutyl-acrylamide et du N-tétramylacrylamide avec ZnCl2, ZnBr2, CdCl2 et CdBr2. La décomposition s'effectue en deux étapes, avec dégagement de produits gazeux simples de faible poids moléculaire. L'application de différentes vitesses de chauffage a révélé, pour les complexes des chlorures de zinc et de cadmium, un pic exothermique additionnel en ATD qui correspond à la réaction de polymérisation dans l'état solide et qui a été confirmé par spectrométrie infrarouge. On n'a pas observé cet effet dans le cas des complexes correspondants des bromures de zinc et cadmium dont la stabilité thermique est bien plus faible.
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![icy](/content/g3723478j877u172/xxlarge1080.gif) , ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![rcy](/content/g3723478j877u172/xxlarge1088.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![bcy](/content/g3723478j877u172/xxlarge1073.gif) ![ycy](/content/g3723478j877u172/xxlarge1099.gif) ![lcy](/content/g3723478j877u172/xxlarge1083.gif) ![pcy](/content/g3723478j877u172/xxlarge1087.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![dcy](/content/g3723478j877u172/xxlarge1076.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![vcy](/content/g3723478j877u172/xxlarge1074.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![zhcy](/content/g3723478j877u172/xxlarge1078.gif) ![dcy](/content/g3723478j877u172/xxlarge1076.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![ncy](/content/g3723478j877u172/xxlarge1085.gif) ![Icy](/content/g3723478j877u172/xxlarge1048.gif) ![scy](/content/g3723478j877u172/xxlarge1089.gif) ![pcy](/content/g3723478j877u172/xxlarge1087.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![rcy](/content/g3723478j877u172/xxlarge1088.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) . ![Ecy](/content/g3723478j877u172/xxlarge1069.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![ecy](/content/g3723478j877u172/xxlarge1101.gif) ![fcy](/content/g3723478j877u172/xxlarge1092.gif) ![fcy](/content/g3723478j877u172/xxlarge1092.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![ncy](/content/g3723478j877u172/xxlarge1085.gif) ![bcy](/content/g3723478j877u172/xxlarge1073.gif) ![ycy](/content/g3723478j877u172/xxlarge1099.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![bcy](/content/g3723478j877u172/xxlarge1073.gif) ![ncy](/content/g3723478j877u172/xxlarge1085.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![rcy](/content/g3723478j877u172/xxlarge1088.gif) ![ucy](/content/g3723478j877u172/xxlarge1091.gif) ![zhcy](/content/g3723478j877u172/xxlarge1078.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![scy](/content/g3723478j877u172/xxlarge1089.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![scy](/content/g3723478j877u172/xxlarge1089.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![vcy](/content/g3723478j877u172/xxlarge1074.gif) ![ucy](/content/g3723478j877u172/xxlarge1091.gif) ![yucy](/content/g3723478j877u172/xxlarge1102.gif) ![shchcy](/content/g3723478j877u172/xxlarge1097.gif) ![icy](/content/g3723478j877u172/xxlarge1080.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) ![pcy](/content/g3723478j877u172/xxlarge1087.gif) ![lcy](/content/g3723478j877u172/xxlarge1083.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![scy](/content/g3723478j877u172/xxlarge1089.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![bcy](/content/g3723478j877u172/xxlarge1073.gif) ![rcy](/content/g3723478j877u172/xxlarge1088.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) ![icy](/content/g3723478j877u172/xxlarge1080.gif) ![dcy](/content/g3723478j877u172/xxlarge1076.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) ![tscy](/content/g3723478j877u172/xxlarge1094.gif) ![icy](/content/g3723478j877u172/xxlarge1080.gif) ![ncy](/content/g3723478j877u172/xxlarge1085.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![dcy](/content/g3723478j877u172/xxlarge1076.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) ![icy](/content/g3723478j877u172/xxlarge1080.gif) , ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![rcy](/content/g3723478j877u172/xxlarge1088.gif) ![ycy](/content/g3723478j877u172/xxlarge1099.gif) ![pcy](/content/g3723478j877u172/xxlarge1087.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![zcy](/content/g3723478j877u172/xxlarge1079.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![lcy](/content/g3723478j877u172/xxlarge1083.gif) ![ncy](/content/g3723478j877u172/xxlarge1085.gif) ![acy](/content/g3723478j877u172/xxlarge1072.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) ![ncy](/content/g3723478j877u172/xxlarge1085.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![gcy](/content/g3723478j877u172/xxlarge1075.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![softcy](/content/g3723478j877u172/xxlarge1100.gif) ![shcy](/content/g3723478j877u172/xxlarge1096.gif) ![ucy](/content/g3723478j877u172/xxlarge1091.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![rcy](/content/g3723478j877u172/xxlarge1088.gif) ![mcy](/content/g3723478j877u172/xxlarge1084.gif) ![icy](/content/g3723478j877u172/xxlarge1080.gif) ![chcy](/content/g3723478j877u172/xxlarge1095.gif) ![iecy](/content/g3723478j877u172/xxlarge1077.gif) ![scy](/content/g3723478j877u172/xxlarge1089.gif) ![kcy](/content/g3723478j877u172/xxlarge1082.gif) ![ucy](/content/g3723478j877u172/xxlarge1091.gif) ![ucy](/content/g3723478j877u172/xxlarge1091.gif) ![scy](/content/g3723478j877u172/xxlarge1089.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![jcy](/content/g3723478j877u172/xxlarge1081.gif) ![chcy](/content/g3723478j877u172/xxlarge1095.gif) ![vcy](/content/g3723478j877u172/xxlarge1074.gif) ![ocy](/content/g3723478j877u172/xxlarge1086.gif) ![scy](/content/g3723478j877u172/xxlarge1089.gif) ![tcy](/content/g3723478j877u172/xxlarge1090.gif) .
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