European Journal of Chemistry 2011, 2(1), 77-82. doi:10.5155/eurjchem.2.1.77-82.183

Thermomechanical studies of thermally stable metal-containing epoxy polymers from diglycidyl ether of bisphenol A and amino-thiourea metal complexes


Sohail Saeed (1,*) , Naghmana Rashid (2) , Peter Jones (3) , Rizwan Hussain (4)

(1) Department of Chemistry, Research Complex, Allama Iqbal Open University, Islamabad-44000, Pakistan
(2) Department of Chemistry, Research Complex, Allama Iqbal Open University, Islamabad-44000, Pakistan
(3) Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Postfach, Braunschweig, D-38023, Germany
(4) National Engineering & Scientific Commission, P.O.Box 2801, Islamabad, Pakistan
(*) Corresponding Author

Received: 23 Jun 2010, Accepted: 20 Sep 2010, Published: 28 Mar 2011

Abstract


New thermally stable epoxy polymers containing copper and nickel ions have been prepared by curing diglycidyl ether of bisphenol A (DGEBA) with amino-thiourea metal complexes. Characterization of the metal complexes was carried out using infrared spectroscopy, elemental analysis and mass spectrometry. Determination of the optimum value of the epoxy/thiourea metal complex ratio was studied by means of differential scanning calorimetry. This method is based on the search for the maximum enthalpy change. The properties of the resulting metal-containing epoxy polymers were investigated with respect to glass transition temperature, thermal stability, tensile strength, and viscoelastic properties. Introduction of metal ions, especially the copper ion, into the polymer matrices produced polymers with good thermal stability and mechanical properties. The polymer showed good thermal stability compared to the DGEBA-DDM (DDM: 4,4’-diaminodiphenylmethane) system. The copper-containing epoxy polymer obtained at a mole ratio of copper complex:DGEBA (24:100) showed a 2.6% weight loss after heating at 400 °C and had a storage modulus of 6080 MPa at 125 °C, which is comparable to the epoxy-DDM system.

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Keywords


Amino-thiourea derivatives; Metal-containing epoxy polymers; Dynamic mechanical analysis; Differential scanning calorimeter; Thermogravimetric analysis; DGEBA

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DOI: 10.5155/eurjchem.2.1.77-82.183

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How to cite


Saeed, S.; Rashid, N.; Jones, P.; Hussain, R. Eur. J. Chem. 2011, 2(1), 77-82. doi:10.5155/eurjchem.2.1.77-82.183
Saeed, S.; Rashid, N.; Jones, P.; Hussain, R. Thermomechanical studies of thermally stable metal-containing epoxy polymers from diglycidyl ether of bisphenol A and amino-thiourea metal complexes. Eur. J. Chem. 2011, 2(1), 77-82. doi:10.5155/eurjchem.2.1.77-82.183
Saeed, S., Rashid, N., Jones, P., & Hussain, R. (2011). Thermomechanical studies of thermally stable metal-containing epoxy polymers from diglycidyl ether of bisphenol A and amino-thiourea metal complexes. European Journal of Chemistry, 2(1), 77-82. doi:10.5155/eurjchem.2.1.77-82.183
Saeed, Sohail, Naghmana Rashid, Peter Jones, & Rizwan Hussain. "Thermomechanical studies of thermally stable metal-containing epoxy polymers from diglycidyl ether of bisphenol A and amino-thiourea metal complexes." European Journal of Chemistry [Online], 2.1 (2011): 77-82. Web. 19 Jan. 2019
Saeed, Sohail, Rashid, Naghmana, Jones, Peter, AND Hussain, Rizwan. "Thermomechanical studies of thermally stable metal-containing epoxy polymers from diglycidyl ether of bisphenol A and amino-thiourea metal complexes" European Journal of Chemistry [Online], Volume 2 Number 1 (28 March 2011)

DOI Link: https://doi.org/10.5155/eurjchem.2.1.77-82.183

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