Bulletin of the Korean Chemical Society

  • 제2권4호
  • /
  • Pages.129-132
  • /
  • 1981
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지
DOI QR코드

DOI QR Code

Rheological Properties of Polystyrene Degraded by Mechanical Forces

  • Oh, In-Joon (Department of Chemistry Korea Advanced Institute of Science and Technology) ;
  • Ree, Taik-Yue (Department of Chemistry Korea Advanced Institute of Science and Technology)
  • 발행 : 19811200
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Polystyrene was degraded by using a vibrating ball mill. The viscosities and molecular weights of the degraded products were measured, and the decrease of viscosity $[\eta}$ with ${\dot{s}}$ (rate of shear) observed for the degraded products were analyzed by applying the Ree-Eyring equation for viscous flow. The variation of the parameters $x_2$/{\alhpa}_2,{\beta}_2$ and $x_1{\beta}_1/{\alpha}_1$ in the equation were explained by the fracture of polymer molecules by mechanical force. The electron paramagnetic resonance spectrum of the degraded sample was taken, and it was confirmed that free radicals were produced by the chain-scission of polystyrene.

키워드

참고문헌

  1. Properties and Structure of Polymers A. V. Tobolsky
  2. Polymer Handbook J. Brandrup;E. H. Immergut
  3. The Theory of Rate Processes S. Glasstone;K. J. Laidler;H. Eyring
  4. J. Appl. Phys. v.26 T. Ree;H. Eyring
  5. Symposium for High Polymer Physics Theory of Non-Newtonian Flow T. Ree
  6. Textile Res. J. v.21 T. Ree;H. Eyring
  7. Textile Res. J. v.22 M. Chen;T. Ree;H. Eyring
  8. Proceeding of International Wool Textile Research Conference T. Ree;S. Hahn;H. Eyring
  9. J. Natl. Grease Inst. (Spokesman) v.22 S. Hahn;H. Eyring;I. Higuch;T. Ree
  10. Noncrystalline Solides S. Hahn;T. Ree;H. Eyring;V. P. Frechette(ed.)
  11. EPR spectroscopy in Polymer Research B. Ranby;J. F. Rabek
  12. Rubber Chem. and Technol. v.44 A. Casale;R. S. Porter;J. F. Johnson
  13. Atlas of Electron Spin Resonance Spectra B. H. J. Bielski;J. M. Gebicki
  14. J. Appl. Polym. Sci. v.23 J. F. S. Yu;J. L. Zakin;G. K. Patterson
  15. J. Appl. Phys. v.26 T. Ree;H. Eyring
  16. J. Chem. Phys. v.4 H. Eyring
  17. The Theory of Rate Processes S. Glasstone;K. J. Laidler;H. Eyring
  18. J. Appl. Phys. v.26 T. Ree;H. Eyring
  19. J. Polym. Sci. Polym. Phys. Ed. v.13 M. Sakaguchi;J. Sohma
  20. Viscosity and Flow Measurement J. R. Van Wazer;J. W. Lyons;K. Y. Kim;R. E. Colwell

피인용 문헌

  1. Mechanochemical tuning of molecular weight distribution of styrene homopolymers as postpolymerization modification in solvent‐free solid‐state vol.138, pp.1, 1981, https://doi.org/10.1002/app.49628