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Thermoanalytical characterization of polyphenylacetylene: III. Use of modulated differential scanning calorimetry (MDSC) |
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| Authors: | A. S. Luyt H. C. M. Vosloo M. Reading |
| Affiliation: | a Department of Chemistry, University of the North (Qwaqwa Campus), Private Bag X13 Phuthaditjhaba 9866 South Africa b Department of Chemistry, Potchefstroomse Universiteit vir Christelike Hoër Onderwys Potchefstroom 2520 South Africa c Institute of Polymer Technology and Materials Engineering, Loughborough University Loughborough LE11 3TU UK |
| Abstract: | Four polyphenylacetylene samples, synthesized using different C6H5OH/Mo molar ratios, were investigated thermoanalytically by modulated temperature differential scanning calorimetry (MTDSC) in order to clarify a non-reversible exothermic event observed between 473 and 523 K on normal DSC. A stepwise, non-reversible change in heat capacity suggests the presence of internal reactions within the sample, that are followed by decomposition with loss of volatile products. |
| Keywords: | Modulated differential scanning calorimetry Polyphenylacetylene |
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