Effect of the Size of the Molecular Mass of Some Amine Groups Modified to Maleic anhydride-alt-1-Octadecene Copolymer on Thermal Stability
Abstract
In this study, 1-octadecene-alt-maleic anhydride (OC-MA) copolymer was synthesized by radical polymerization method. The synthesized copolymer was first time modified with ammonia, methylamine, aniline and hexamethylenediamine reagents in acetone environment. The modified amidic acid derivatives were divided into two parts as quantity. One of these amounts was dried as an amidic acid derivative, and the other was imidized in dimethylformamide environment with constant stirring at 150 °C for 5 hours. Structural characterizations of the obtained samples were determined from the FTIR spectra. Thermal stability was compared from Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) curves. It was established that the modified copolymers were thermally more stable than that of the original OC-MA copolymer. However, it was observed that the size of the molar masses of the reagents participating in the modification reactions showed linear or parabolic increases according to thermal parameter temperature of the decomposition reaction obtained from the TGA and DSC curves.
Keywords
Copolymerization, Radical polymerization, Thermal analysis, Modification
Supporting Institution
Cumhuriyet University in Sivas, Turkey.
Project Number
F-105
Thanks
The present paper has been funded by the Research Foundation of Cumhuriyet University in Sivas, Turkey.
References
- [1] Dongdan C., Jianfeng S., Mei H., Yanhua L., Jianjun W., Lixing D., Synthesis, characterization and hydrolytic stability of poly (amic acid) ammonium salt, Polymer Degradation and Stability, 96 (2011) 2174-2180.
- [2] Nafeesa M., Qiaodi W., Guofei C., Beenish B., Haoji L., Yuanming Z., Lala R. S., Xingzhong F., Synthesis of polyamide-imides with different monomer sequence and effect on transparency and thermal properties, Polymer, 190 (2020) 122218.
- [3] Liaw D. J., Liaw B.Y., Synthesis and characterization of new polyamide-imides containing pendent adamantyl groups, Polymer, 42 (2001) 839–845.
- [4] Rathanawan M., Wittaya L., Anuvat S.,. Schwank J. W., Preparation, structure, properties and thermal behavior of rigid-rod polyimide/montmorillonite nanocomposites, Composites Science and Technology, 61 (2001) 1253–1264.
- [5] Liu. Y. L., Chen Y. W., Thermally Reversible Cross-Linked Polyamides with High Toughness and Self-Repairing Ability from Maleimide and Furan-Functionalized Aromatic Polyamides, Macromol. Chem. Phys, 208, (2007) 224–232.
- [6] Zengin H. B.,. Boztuğ A., Basan S.¸ Synthesis and Comparative Study of Thermal Stabilities of the Imidization of Some Maleic Anhydride Copolymers, Journal of Applied Polymer Science, 101 ( 2006) 2250–2254.
- [7] Jana R.N., Mukunda P. G., Nando G. B., Polym. Degrad. Stabil. “Thermogravimetric analysis of compatibilized blends of low density polyethylene and poly(dimethyl siloxane), Rubber, 80 (2003) 75–82.
- [8] Yen H. Y., Lee F. S., and Yang M. H., Polym. Test, Thermal degradation of polysulfones. VI: evaluation of thermal pyrolysis of acrylonitrile-butadiene-styrene terpolymer 22, (2003) 31–36.
- [9] Su W. Y., Wang Y., Min K., Quirk R. P., In situ copolymerization and compatibilization of polyester and polystyrene blends. I. Synthesis of functionalized polystyrenes and the reactions with polyester, Polymer, 42 (2001) 5107–5119.
- [10] Zulfiqar S., Masud K., Stabil, Thermal degradation of blends of allyl methacrylate–methyl methacrylate copolymers with aluminum isopropoxide, Polym. Degrad, 78 (2002) 305–313.