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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.1
- 수록면
- 122 - 127 (6page)
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Thermal decomposition kinetics for two different types of polyurethane elastomers prepared with 2,2'-dichloro-4,4'-methylenedianiline (MOCA) and 3,5-dimethyl-thiotoluenediamine (Ethacure-300), based on PTMG/TDI isocyanate prepolymer, were studied using non-isothermal thermogravimetric analysis (TGA). Thermograms were obtained and analyzed using Friedman (FR) and Kissinger-Akahira-Sunose (KAS) methods for activation energy, $E_a$. The results obtained showed that decomposition reaction of both samples was observed similarly to occur through three different stages, i.e., initial stage with vaporization of low molecular weight materials, second stage of urethane linkage decompositions, and later stage of polyol segment decompositions. However, activation energy values at each stage for the sample cured with Ethacure-300 was much lower than those for the sample with MOCA, exhibiting relatively lower thermal stability for the sample with Ethacure-300 than that with MOCA.
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참고문헌 (16)
참고문헌 신청
M. Barikani / 2013 / Study on thermal properties of polyurethane-urea elastomers prepared with different dianiline chain extenders / J. Polym. Eng 33(1):87
K. Gisselfält / 2003 / Effect of Soft Segment Length and Chain Extender Structure on Phase Separation and Morphology in Poly (urethane-urea)s / Macromol. Mater. Eng 288(3):265
X.-D. Chen / 2009 / Preparation and properties of cast polyurethane elastomers with molecularly uniform hard segments based on 2,4-toluene diisocyanate and 3,5-dimethyl-thiotoluene diamine / J. Biomed. Sci. Eng 2:245
T. O. Ahn / 1993 / Thermal and mechanical properties of thermo- plastic polyurethane elastomers from different polymerization methods / Polym. Int 31:329
S. Yamasaki / 2007 / Effects of polymerization method on structure and properties of thermoplastic polyurethanes / J. Polym. Sci. Part B : Polymer Physics 45:800
K. Gisselfält / 2003 / Effect of Soft Segment Length and Chain Extender Structure on Phase Separation and Morphology in Poly (urethane-urea)s / Macromol. Mater. Eng 288(3):265
X.-D. Chen / 2009 / Preparation and properties of cast polyurethane elastomers with molecularly uniform hard segments based on 2,4-toluene diisocyanate and 3,5-dimethyl-thiotoluene diamine / J. Biomed. Sci. Eng 2:245
T. O. Ahn / 1993 / Thermal and mechanical properties of thermo- plastic polyurethane elastomers from different polymerization methods / Polym. Int 31:329
S. Yamasaki / 2007 / Effects of polymerization method on structure and properties of thermoplastic polyurethanes / J. Polym. Sci. Part B : Polymer Physics 45:800
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