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논문 기본 정보

자료유형
학술저널
저자정보
Choi, Mi-Kyung (Department of Chemical Engineering, Dankook University) Kim, Yu-Bin (Department of Chemical Engineering, Dankook University) Kim, Ji-Hye (Department of Chemical Engineering, Dankook University) Kim, Hyung-Su (Department of Chemical Engineering, Dankook University)
저널정보
한국유변학회 Korea-Australia rheology journal Korea-Australia rheology journal 제20권 제4호
발행연도
2008.1
수록면
245 - 251 (7page)

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Two polysiloxanes having different chemical structures were blended with polycarbonate (PC) under ultrasonic irradiation in solution. The polysiloxanes used were poly(methylphenyl siloxane) and vinyl-terminated poly(dimethyl siloxane). It was of primary interest to investigate the effect of polysiloxane structure on the rheological properties of PC/polysiloxane blends. It was found that a small amount (1.5 phr) of polysiloxanes greatly altered the melt viscosities and elasticity of PC. In particular, incorporation of poly(methylphenylsiloxane) led to a notable increase in elasticity with greater shear sensitivity of PC. The observed rheological behaviors of PC/polysiloxane blends were partly explained in conjunction with the tendencies found in ultrasonic degradation of polysiloxanes. Thermal stability and morphology in sonicated blends of PC/polysiloxane blends were also discussed.

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