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Structure of piperidinoethyl esters of alkoxyphenylcarbamic acids and their thermodynamic parameters

Structure of piperidinoethyl esters of alkoxyphenylcarbamic acids and their thermodynamic parameters The melting temperature of nine piperidinoethyl esters of alkoxyphenylcarbamic acid (hexaoxy-octyloxy) including all site isomers was investigated. The analyses were performed using DSC apparatus, sample mass ranged from 0.2 to 2.5 mg, heating rate was 5 K min -1 and in static air atmosphere. On the basis of melting peak, thermodynamic figures like: enthalpy, entropy, height and area of the peak and temperature of the partial peak were fixed. For evaluation of the results Principal Component Analysis was applied. Thanks to this method the influence of length (mass) and position of alkoxy substituents on the thermodynamic parameters of melting of compounds under investigation were determined. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Thermal Analysis and Calorimetry Springer Journals

Structure of piperidinoethyl esters of alkoxyphenylcarbamic acids and their thermodynamic parameters

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References (12)

Publisher
Springer Journals
Copyright
Copyright © 2003 by Kluwer Academic Publisher/Akadémiai Kiadó
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Polymer Sciences; Measurement Science, Instrumentation
ISSN
1388-6150
eISSN
1572-8943
DOI
10.1023/A:1026306609621
Publisher site
See Article on Publisher Site

Abstract

The melting temperature of nine piperidinoethyl esters of alkoxyphenylcarbamic acid (hexaoxy-octyloxy) including all site isomers was investigated. The analyses were performed using DSC apparatus, sample mass ranged from 0.2 to 2.5 mg, heating rate was 5 K min -1 and in static air atmosphere. On the basis of melting peak, thermodynamic figures like: enthalpy, entropy, height and area of the peak and temperature of the partial peak were fixed. For evaluation of the results Principal Component Analysis was applied. Thanks to this method the influence of length (mass) and position of alkoxy substituents on the thermodynamic parameters of melting of compounds under investigation were determined.

Journal

Journal of Thermal Analysis and CalorimetrySpringer Journals

Published: Oct 1, 2003

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