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题名: Synthesis and degradation kinetics of a novel polyester containing bithiazole rings
作者: He W(何伟) ; Jiang YY(姜莹莹) ; Luyt, A.S. ; Ocaya, R.O ; Ge TJ(葛铁军)
作者部门: 机器人学研究室
关键词: Activation energy ; Complexation ; Degradation ; Esters ; Fourier transform infrared spectroscopy ; Functional groups ; Integral equations ; Kinetics ; Polycondensation ; Polyesters ; Pyrolysis ; Synthesis (chemical) ; X ray diffraction ; X ray diffraction analysis
刊名: Thermochimica Acta
ISSN号: 0040-6031
出版日期: 2011
卷号: 525, 期号:1-2, 页码:9-15
收录类别: EI
产权排序: 1
摘要: A novel Schiff base type polyester containing 2,2′-diamino-4, 4′-bithiazole (DABT) was prepared by low-temperature interface polycondensation of 1,4-benzenedicarbonyl dichloride with 4,4′-(4, 4′-bithiazole-2,2′-diylbis(imine-2,1-diyl) diphenol (BDDP), which is derived from a 2,2′-diamino-4,4′-bithiazole (DABT) Schiff base reacted with a 4-hydroxybenzaldehyde monomer. The newly generated polyester was characterized by FTIR spectroscopy, elemental analysis, and X-ray diffraction spectroscopy. The thermal decomposition was investigated in nitrogen atmosphere using thermogravimetric analysis. The activation energies of the decomposition step of the polyester were calculated through the isoconversional methods of Kissinger-Akahira-Sunose (K-A-S) and the iterative equation. In order to estimate the reaction model that best describes the experimental data, the use of an empirical kinetic equation based on that proposed by Sestak-Berggren was investigated here. On the basis of the kinetic data, the life time estimates for the polyester generated from the weight loss of 5%, 10%, and 15% were also constructed.
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/10623
Appears in Collections:机器人学研究室_期刊论文

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