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Citation: Chen Chunxia, Huang Jinyu, Zheng Sixun, Guo Qipeng. Structures and Fracture Mechanical Properties of Epoxy Resin/Polycarbonate Blends Cured with 4, 4'-Diaminodiphenyl Sulfone[J]. Chinese Journal of Applied Chemistry, ;1999, 16(6): 1-4. shu

Structures and Fracture Mechanical Properties of Epoxy Resin/Polycarbonate Blends Cured with 4, 4'-Diaminodiphenyl Sulfone

1.
Department of Polymer Science and Engineering, China University of Science and Technology, Hefei 230026

Received Date: 22 March 1999
Available Online: 21 July 1999
Fund Project: 国家杰出青年基金(59525307) (59525307)

Epoxy resin of bisphenol A type(ER)/polycarbonate(PC) blends cured with 4, 4'-diaminodiphenyl sulfone(DDS) were prepared.Dynamic mechanical analysis showed that the DDS-cured ER/PC blends had only single T_g, indicating the cured blend system is of single-phase.SEM also revealed the homogeneity of the blends.An interesterification reaction between ER and PC in the blends could be concluded from the observations of the shift to low frequencies of the streching vibration bands of carbonyl group of the blends.Addition of PC had little influence on the modulus, tensile strength, tensile elongation and fracture toughness of the blends, which could be ascribed to the phase structure and interesterification occurred during the preparation of the blends.
- epoxy resin/polycarbonate blend,
- phase structure,
- interesterification,
- mechanical Property
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