Article
  • Polyacrylonitrile Blends with Polyurethane Ionomers and Nonionomers
  • Oh YS, Lee YM, Kim BK
  • Polyacrylonitrile과 Polyurethane Ionomer 및 Nonionomer Blend
  • 오영세, 이영민, 김병규
Abstract
Blends of polyacrylonitrile(PAN) with different types of ionic and nonionic polyurethane(PU) were prepared in N,N'-dimethylformamide. Blends of PU anionomer and nonionomer showed large phase separation with spherical domains. On the contrary, PU cationomer blends showed a homogeneous morphology. In PU cationomer blends, the tan δ peak, examined by a rheovibron, of PU and PAN moved toward lower and higher temperatures respectively. In addition, the tensile strength of PU cationomer blend increased by about 2.5 times at 70/30(PAN/PUCa by wt), which was thought to be due to the ion pair interactions between PU cations and PAN anions.

폴리아크릴로니트릴(PAN)과 폴리우레탄(PU) ionomer 및 nonionomer와의 용액(DMF) blend를 제조하였다. PU anionomer(PUAn) 및 PU nonionomer(PUNo) blend에서는 입자분산형의 심한 상분리를 보인 반면, PU cationomer(PUCa) blend는 균일한 morphology를 보였다. PUCa blend에서 PU 및 PAN의 tan δ peak는 각각 저온 및 고온 쪽으로 이동하였으며, 인장강도는 additivity rule에 대하여 상당한 positive deviation을 보였으며, 특히 70/30(PAN/PUCa by wt)에서 PAN의 강도 보다 약 2.5배 증가하였다. 이러한 상승효과는 PUCa의 양이온과 PAN의 음이온에 의한 이온짝 상호작용에 의한 깃으로 판단하였다.

References
  • 1. Dalven PI, Laccetti AT, Hongins LT, Gregor HP, J. Appl. Polym. Sci., 30, 1113 (1985)
  •  
  • 2. Polyton DJ, Text. Prog., 8, 51 (1976)
  •  
  • 3. Br. Patent, 1,472,645 (1977)
  •  
  • 4. Gupta AK, Songhal RP, J. Polym. Sci. B: Polym. Phys., 21, 2243 (1981)
  •  
  • 5. Nedelcheva DP, Belousova TA, Tsarevskaya IY, Kozlov PV, Polym. Sci. U.S.S.R., 28, 218 (1986)
  •  
  • 6. Bajaj P, Kumar MS, Text. Res. J., 59, 192 (1980)
  •  
  • 7. Japan Patent, 56-053208
  •  
  • 8. Japan Patent, 55-047132
  •  
  • 9. Brit. Patent, 2,082,368A (1980)
  •  
  • 10. U.S. Patent, 3,542,719 (1970)
  •  
  • 11. Lawton EL, Murayama T, Holland VF, Felty DC, J. Appl. Polym. Sci., 25, 187 (1980)
  •  
  • 12. Srichatrapimuk VW, Cooper SL, J. Macromol. Sci.-Phys., 1315, 267 (1987)
  •  
  • 13. Takahara A, Tashita J, Kajiyama T, Takayanagi M, Macknight WJ, Polymer, 26, 987 (1985)
  •  
  • 14. Minami SH, Saito K, Kobunshi Kagaku, 29, 114 (1972)
  •  
  • 15. Kim BK, Kim TK, J. Appl. Polym. Sci., 43, 393 (1991)
  •  
  • 16. Kim TK, Kim BK, Colloid Polym. Sci., 269, 889 (1991)
  •  
  • 17. Mondragon I, Nazabal J, Polym. Eng. Sci., 25, 178 (1985)
  •  
  • 18. Lee YK, Jeong YT, Kim KC, Jeong HM, Kim BK, Polym. Eng. Sci., 31, 944 (1991)
  •  
  • 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

  • 1992; 16(6): 715-720

    Published online Nov 25, 1992