Korean Journal of Materials Research, Vol.11, No.9, 727-732, September, 2001
에폭시 수지계 의료용 고분자 재료의 특성 연구 - Kissinger 식과 Ozawa 식에 의한 DGEBA/MDA/PGE-DMU 계의 경화특성 -
Characteristics of Medical Polymer Based on Epoxy Resin System -Cure Characteristics for DGEBA/MDA/PGE- DMU System by Kissinger and Ozawa Equations-
E-mail:
The cure kinetics of diglycidyl ether of bisphenol A (DGEBA)/4,4'- methylene dianiline (MDA) system with synthesized phenyl glycidyl ether-dimethylurea (PGE-DMU) was studied by Kissinger and Ozawa equations with DSC analysis in the temperature range of 20 300 ? C To investigate the reaction mechanism between epoxy group of PGE and urea group of DMU, FT-lR spectroscopy analysis was used. The epoxide group of PGE reacted with the urea group of DMU and formed a hydroxyl group which acted as a catalyst on the cure reaction of other epoxide and amine groups. The activation energy of DGEBA/MDA system without PGE-DMU was 46.5 kJ/mol and those of the system with 5 and 10 phr of PGE- DMU were 43.4 and 37.0 kJ/mol, respectively. Ozawa method also showed the same tendency.
- Lee JY, Shim MJ, Kim SW, Mater. Chem. Phys., 48, 36 (1997)
- Lee JY, Shim MJ, Kim SW, ibid., 44, 74 (1996)
- Ozawa T, J. Therm. Anal., 2, 301 (1970)
- Doyle CD, J. Appl. Polym. Sci., 6, 639 (1962)
- Prime RB, “Thermal Characterization of Polymeric Materials" , Ed. Turi EA, Academic Press, New York (1982).
- Lu MG, Shim MJ, Kim SW, Thermochim. Acta, 323(1-2), 37 (1998)
- Vyazovkin S, Sbirrazzuoli N, Macromolecules, 29(6), 1867 (1996)
- Cho CS, Fu SC, Chen LW, Wu TR, Polym. Int., 47, 203 (1998)
- Guo QP, Polymer, 36(25), 4753 (1995)
- Li YS, Li MS, Chang FC, J. Polym. Sci. A: Polym. Chem., 37, 8614 (1999)
- Tanaka Y, Kakiuchi H, J. Appl. Polym. Sci., 7, 1063 (1963)
- Mijovi J, Kim J, Slaby J, ibid., 29, 1449 (1984)
- Lee JY, Shim MJ, Kim SW, Korean J. Mater. Res., 5, 667 (1995)