화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.20, No.4, 245-251, December, 2008
Export Citation
Rheological properties and thermal degradation behaviors of sonochemically treated polycarbonate/polysiloxanes blends
Mikyung Choi, Yubin Kim, Jihye Kim, and Hyungsu Kim†
  • Department of Chemical Engineering, Dankook University, Jukjeon-Dong, Yongin-City, Kyungki-Do, Korea
E-mail:
Two polysiloxanes having different chemical structures were blended with polycarbonate (PC) under ultrasonic irradiation in solution. The polysiloxanes used were poly(methylphenyl siloxane) and vinylterminated 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.
Keywords:polycarbonate;polysiloxane;ultrasound;degradation
  1. Bawn CEH, Mellish SPA, Trans. Faraday Soc., 47, 1216 (1951)
  2. Choi M, Lee K, Lee J, Kim H, Macromo. Symp., 249, 350 (2007)
  3. Choi MK, 2009, Modification of polycarbonate via sonochemical copolymerization and blending, Master Thesis, Dankook University
  4. Grubbs GR, Kleppick ME, J. Appl. Polym. Sci., 27, 601 (1982)
  5. Kim H, Ryu JG, Lee JW, Korea-Aust. Rheol. J., 14(3), 121 (2002)
  6. Kim H, Lee H, Lee JW, Korea-Aust. Rheol. J., 19(1), 1 (2007)
  7. Ma CC, Gu JT, Fang WC, Yang JC, Tsai LD, J. Appl. Polym. Sci., 66(1), 67 (1997)
  8. Mason TJ, Lorimer JP, 2002, Applied Sonochemistry: The uses of power ultrasound in chemistry and processing, Wiley-VCH, Weinheim
  9. Nodera A, Kanai T, J. Appl. Polym. Sci., 100(1), 565 (2006)
  10. Nodera A, Kanai T, J. Appl. Polym. Sci., 102(2), 1697 (2006)
  11. Pesetskii SS, Jurkowski B, Koval VN, J. Appl. Polym. Sci., 78(4), 858 (2000)
  12. Price GJ, Hearn MP, Wallace EN, Patel AM, Polymer, 37(12), 2303 (1996)
  13. van Aert HAM, Nelissen L, Lemstra PJ, Brunelle DJ, Polymer, 42(5), 1781 (2001)
  14. Zhou W, Yang H, Guo X, Lu J, Polymer Degradation and Stability, 91, 1471 (2006)