Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

The Effects of a Transesterification Catalyst on the Morphology of PC/PMMA Blends

에스테르 교환반응 촉매가 PC/PMMA 블렌드의 모폴로지에 미치는 영향

  • 이무성 (전남대학교 섬유공학과ㆍ신소재기술연구소) ;
  • 하민규 (전남대학교 섬유공학과ㆍ신소재기술연구소) ;
  • 이휘선 (서울대학교 재료공학부) ;
  • 조원호 (서울대학교 재료공학부)
  • Published : 2001.02.01

⟨ Previous Next ⟩

Abstract

The effects of the transesterification reaction between ester linkages in polycarbonate (PC) and poly(methyl methacrylate) (PMMA) on the morphology of their blends were investigated. A catalyst, titanium(IV) butoxide, Ti(OBu)$_4$, was added to control the reaction during melt mixing. From the results of melt viscosity and FTIR we found that the added catalyst acted positively to accelerate the reaction but negatively to decrease the molecular weight of PC. The duplicity of the catalyst significantly affects the morphology and thermal properties of the blends, especially for PC matrix blends. It was also verified from the annealing experiments that the products from transesterification reaction, which are expected to locate at interface, does not contribute to prevent static coalescence during annealing.

Keywords

References

  1. Plastic Materials (5th Ed) J. A. Brydson
  2. J. Polym. Sci. Polym. Phys. Ed. v.25 no.1459 J. S. Chiou;J. W. Barlow;D. R. Paul
  3. Polymer v.37 no.4111 E. M. Woo;C. C. Su
  4. J. Polym. Sci. Polym. Lett. Ed. v.27 no.421 T. Kyu;J. M. Saldanha
  5. Polymer v.32 no.272 M. Nashimoto;H. Keskkula;D. R. Paul
  6. J. Chem. Phys. v.97 no.4505 M. Rabeony;D. T. Hseih;R. T. Garner;D. G. Peiffer
  7. Macromolecules v.32 no.1119 A. Karim;J. F. Douglas;S. K. Satija;C. C. Han;R. J. Goyette
  8. Macromolecules v.16 no.589 J. S. Trent;J. I. Scheinbeim;R. R. Couchman
  9. Polymer v.25 no.2057 W. E. Baker;M. Saleem
  10. Polymer v.33 no.268 A. Oshinski;H. Keskkula;D. R. Paul
  11. Polym. Eng. Sci. v.35 no.1938 C. E. Scott;C. W. Macosko
  12. Polymer v.35 no.5422 C. E. Scott;C. W. Macosko
  13. Polymer v.33 no.2019 R. S. Porter;L. H. Wang
  14. Polymer v.38 no.3017 A. C. M. van Bennekom;D. T. Pluimers;J. Bussink;R. J. Gaymans
  15. Polymer v.30 no.1287 T. Suzuki;H. Tanaka;T. Nishi
  16. J. Rheol. v.33 no.5 C. J. Carriere;A. Cohen;C. B. Arends
  17. Polym. Eng. Sci. v.27 no.335 S. Wu
  18. Macromolecules v.29 no.5590 C. W. Macosko;Ph. Guegan;A. K. Khandpur;A. Nakayama;Ph. Marechal;T. Inoue
  19. J. Polym. Sci. v.34 no.1691 P. Cigana;B. D. Favis;R. Jerome