Thermogravimetric and Spectroscopic Analysis of 8-Hydroxyquinoline 5-Sulphonic Acid-melamine-formaldehyde Polymer Resin-IV
Author
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-29
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The title terpolymer (8-HQ5-SAMF-IV) synthesized by the condensation of 8-hydroxyquinoline 5-sulphonic acid (8-HQ5-SA) and melamine (M) with formaldehyde (F) in the presence of acid catalyst and using varied 3 : 1 : 5 molar proportions of the reacting monomers.
The synthesized terpolymer was characterized by different physicochemical techniques.
The thermogravimetric analysis of terpolymer resin prepared in the present study has been carried out by nonisothermal thermogravimetric analysis technique in which sample is subjected to condition of continuous increase in temperature at linear rate.
Thermal study of the resin was carried out to determine the mode of decomposition and thermal stability.
Thermal decomposition curve was studied carefully with minute details.
The Freeman-Carroll and Sharp-Wentworth methods have been used in the present investigation to calculate thermal activation energy and different kinetic parameter of the terpolymer resin.
Thermal activation energy (Ea) calculated by two above mentioned methods, is in close agreement.
The advantage of Freeman-Carroll method is to calculate both the order of reaction (n) and energy of activation in one single stage by keeping heating rate constant.
By using data of thermogravimetric analysis, various thermogravimetric parameters like frequency factor (Z), entropy change (ΔS), free energy change (ΔF), and apparent entropy (S*) have been determined using Freeman-Carroll method.
American Psychological Association (APA)
Singru, Rajesh N.. 2012. Thermogravimetric and Spectroscopic Analysis of 8-Hydroxyquinoline 5-Sulphonic Acid-melamine-formaldehyde Polymer Resin-IV. ISRN Thermodynamics،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-463486
Modern Language Association (MLA)
Singru, Rajesh N.. Thermogravimetric and Spectroscopic Analysis of 8-Hydroxyquinoline 5-Sulphonic Acid-melamine-formaldehyde Polymer Resin-IV. ISRN Thermodynamics No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-463486
American Medical Association (AMA)
Singru, Rajesh N.. Thermogravimetric and Spectroscopic Analysis of 8-Hydroxyquinoline 5-Sulphonic Acid-melamine-formaldehyde Polymer Resin-IV. ISRN Thermodynamics. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-463486
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463486