Bulletin of the Korean Chemical Society

  • 제21권6호
  • /
  • Pages.557-561
  • /
  • 2000
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지
DOI QR코드

DOI QR Code

Preparation and Thermal Properties of Enaryloxynitriles End-Capped Polymer Precursors

  • 발행 : 20000600
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Various enaryloxynitriles-terminated reactive polymer precursors containing rigid aromatic units were prepared from various diamines and 1-(p-formylphenyl)-1-phenyl-2,2-dicyanoethene (1). Arylate end-capped model compounds linked with azomethine bond were also prepared by reacting p-formylphenyl benzoate with diamines to compare the curing ability. The oligomers were highly soluble in polar aprotic solvents such as N,N-dimethylformamide, dimethylsulfoxide and N-methyl-2 -pyrrolidinone. They generally showed an exothermic curing process between $280-350^{\circ}C$, attributable to the thermal crosslinking of the dicyanovinyl group in DSC analysis, and no weight loss at curing temperature. Upon heating the polymer precursors, heat-resistant and insoluble network polymers were obtained. Thermogravimetric analyses of the precursors containing rigid aromatic units showed thermal stability with a 77-92% residual weight at $500^{\circ}C$ under nitrogen.

키워드

참고문헌

  1. Comprehensive Polymer Science v.5 Allen, G.;Bevington,J. C.
  2. Am. Chem. Soc. Spinelli, H. J.;Harris,F. W.;Reactive Oligomers;ACS Sym.Ser.282
  3. Polym. J. v.26 no.1910 Kim, Y. S.;Kim, B. G.;Gong, M. S.
  4. Macro-molecules v.26 no.6654 Cho, H. G.;Kim, B. G.;Choi, S. H.;Gong, m. S.
  5. Macromolecules v.22 no.1084 Robello, D. R.;Moore, J. A.
  6. Macromolecules v.28 no.5638 Kim, S. G.;Lee, S. J.;Gong, M. S.
  7. Macromolecules v.26 no.916 Mehta, P. G.;Moore, J. A.
  8. Macromolecules v.26 no.3504 Mehta, P. G.;Kim, S. Y.;Moore, J. A.
  9. Polym. J. v.25 no.193 Moon, H. S.;Kim, J. S.;Kim, C. B.;Gong,M. S.
  10. Macromolecules v.28 no.2212 Shin,J. C.;Kim, T. M.;Gong, M. S.
  11. Polym. J. v.27 no.536 Ha, J. H.;Kim, C.;Gong, M. S.
  12. Macromol. Chem. Phys. v.196 no.4001 Ha, J. H.;Lee, S. J.;Gong, M. S.
  13. J. Polym. Sci. v.31 no.1771 Mikroyannidis, J. A.
  14. Macromol. Chem. Phys. v.199 no.433 Park, W. S.;Gong, M. S.
  15. Bull. Korean Chem. Soc. v.19 no.291 Park, W. S.;Gil, D. S.;Gong, M. S.
  16. J. Polym. Sci. v.29 no.1447 Li, H.;Hsu, K. Y.;Chang, T. C.
  17. J. Macro. Sci.-Revs. Macro. Chem. v.C21 no.2 Korshak, V. V.;Rusanov, A.L.
  18. Macromolecules v.9 no.516 Stille, J. K.;Nelb, N. G.;Norris, S. O.