Article
  • Synthesis and Characterization of Polyimide Fibers
  • Lee S
  • 폴리아미드 섬유의 합성과 그 특성
  • 이상국
Abstract
The random copolymerization of 3,3'-dimethy1-4,4'-diaminobiphenyl (OTOL) and 3,3', 4,4'-biphenyltetra-carboxylic dianhydride (BPDA) with two comonomers, j.e., 4,4'-diaminodiphenyl ether (ODA) and 2,2'-bis(trifluoromethy1)-4,4'-diaminobipheny1 (PFMB), was carried out using the one-step method in p-chlorophenol. Several copolymers were obtained that were soluble in p-chlorophenol. In the first series the copolymers' intrinsic viscosities ranged from 4.35 to 5.43 dL/g. The copolymers were dry-jet wet spun into fibers directly from their polymerization mixtures. The fibers were drawn to higher draw ratios of 4.5 to 6.0. The tensile strengths of the fibers were between 7.67 and 16.28 g/d. The second polymers had intrinsic viscosities of 3.48 to 6.98 dL/g. The draw ratios of fibers were much increased. Fibers of the copolymers displayed tensile strengths as high as 15.10 g/d and moduli as high as 810 g/d.

p-Chlorophenol 용제를 사용하여 1단계 방법으로 3,3'-dimethy1-4,4'-diaminobiphenyl(OTOL)와 3,3',4,4'-biphenyltetra-carboxylic dianhydride(BPDA), 그리고 두 단량체, 4,4'-diaminodiphenyl ether(ODA)와 2,2'-bis(trifluoromethyl)-4,4'-diaminobipheny1(PFMB)를 사용하여, p-chlorophenol에 녹는 여러가지 공중합체를 만들었다. 첫번째 단량체로 만든 공중합체의 점도는 4.35∼5.43 dL/g였다. 이 공중합체 용액을 방사하여 섬유를 만들었으며 이들의 인장강도는 7.67∼16.28 g/d였다. 두번째 단량체를 만든 공중합체의 점도는 3.48∼6.98 dL/g 였고, 이공중합체 용액을 방사하여 만든 섬유의 최고 인장강도는 15.10 g/d, 최대 탄성율의 값은 810g/d 였다.

Keywords: polyimide fibers; dry-jet wet; tensile strength; nodulus; copolymerization

References
  • 1. Mittal KLPolyimides: Synthesis, Characterization, and Applications, vol. 1 & 2, Plenum, New York (1984)
  •  
  • 2. Bessonov MI, Koton MM, Kudryavtsev VV, Laius LAPolyimides: Thermally Stable Polymers, 2nd ed., Plenum, New York (1987)
  •  
  • 3. Grubb DT, Mita I, Yoon DYMaterials Science of High Temperature Polymers for Microelectronics, vol. 227, Pittsburgh, Material Research Society (1991)
  •  
  • 4. Wilson D, Stenzenberger HD, Hergenrother PMPolyimides, Blackie & Son Ltd., New York (1990)
  •  
  • 5. Feger CJ, Khojasteh MM, McGrath JEPolyimides: Materials, Chemistry, and Characterization, Elsevier Science Publishers B.V., Amsterdam, N.Y. (1989)
  •  
  • 6. Lupinski JH, Moore RSPolymeric Materials for Electrics Packaging and Interconnection, ACS Symposium Series 407, American Chemical Society, Washington, D.C. (1989)
  •  
  • 7. Sroog CE, Prog. Polym. Sci., 16(4), 561 (1991)
  •  
  • 8. E.I. Du Pont de Nemours and Co.
  •  
  • 9. Irwin RS, Smullen CEU.S. Patent, 4,640,972 (1987)
  •  
  • 10. Koton MMBr. Patent, 1,183,306 (1970)
  •  
  • 11. Koton MMBr. Patent, 2,025,311 (1980)
  •  
  • 12. JindaD, Matsuda T, Sakamoto K, Sen-I Gakkaishi, 40(12), 42 (1984)
  •  
  • 13. Alberino LM, Farrissey WJ, Rose JSU.S. Patent, 3,708,458 (1973)
  •  
  • 14. Farrissey WJ, Onder BKU.S. Patent, 3,985,934 (1976)
  •  
  • 15. Makino H, Kusuki Y, Harada T, Shimazaki HU.S. Patent, 4,370,290 (1983)
  •  
  • 16. Sasaki T, Hatani H, Kashima M, Yoshimoto H, Sasaki YU.S. Patent, 4,247,443 (1981)
  •  
  • 17. Kaneda T, Katsura T, Nakagawa K, Makino H, Horio M, J. Appl. Polym. Sci., 32, 3138 (1986)
  •  
  • 18. Lee S, Haris FW, Polymerto submitted (1995)
  •  
  • 19. Rogers HG, Gaudiana RA, Hoolinsed WC, Kalyanarman PS, Manello JS, McGowan C, Sahatjian R, Macromolecules, 18, 1058 (1985)
  •  
  • 20. DeTar DF, J. Org. Chem., 45, 5166 (1980)
  •  
  • 21. DeTar DF, J. Am. Chem. Soc., 102, 7988 (1980)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1995; 19(6): 779-788

    Published online Nov 25, 1995