SPEEK-PEI-PC 상성분계 고분자 블렌드의 물성

권현성; 전용성; 정현철; 김상범; 김우년

Polymer(Korea), Vol.21, No.5, 786-793, September, 1997

Export Citation

SPEEK-PEI-PC 상성분계 고분자 블렌드의 물성

Properties of SPEEK-PEI-PC Ternary Polymer Blends

권현성, 전용성, 정현철, 김상범, 김우년

초록

Poly(ether ether ketone) (PEEK)을 95% 진한 황산으로 술폰화하여 sulfonated poly (ether ether ketone) (SPEEK)을 제조하였으며, 이를 이용하여 폴리에테르 이미드(PEI)와 블렌드, 그리고 폴리카보네이트 (PC)와 블렌드를 solution casting 방법으로 제조하였다. SPEEK-PEI 블렌드 그리고 SPEEK-PC 블렌드의 열적 성질을 시차 주사 열분석기 (DSC)를 이용자여 Tg를 측정한 결과 SPEEK-PEI 블렌드는 하나의 유리전이온노(Tg)가 관찰되어 상용성인 있는 것으로 나타났고 SPEEK-PC 블렌드는 상분리를 나타내는 두개의 Tg가 관찰되었다. 열분석 결과를 이용하여 SPEEK-PEI블렌드와 SPEEK-PC 블렌드 파각의 고분자-고분자 상호작용계수 (χ₁₂)를 계산하였고, 앞선 연구에서 계산된 PEI-PC 블렌드의 χ₁₂를 이용하여 삼성분계 블렌크의 상거동을 모사하였다. 이성분계 블렌드인 SPEEK-PEI, SPEEK-PC, 그리고 PEI-PC 블렌드로부터 구한 χ₁₂값을 이용하여 삼성분계 블렌드의 강거동을 모사한 결과 SPEEK-PEI 블렌드쪽으로 단일상이 나타나는 것으로 계산되었고, 나머지 대부분의 조성에서는 상분리가 일어나는 것으로 계산되었다. DSC를 이용하여 관찰된 SPEEK-PEI-PC 삼성분계 블렌드의 T_g 결과는 χ₁₂값을 이용하여 모사한 삼성분계 블렌드의 상거동 결과와 일치함을 보였다.

Sulfonated PEEK (SPEEK) was obtained by sulfonation of PEEK using 95% sulfuric acid. The blends of SPEEK with poly(ether imide) (PEI) and with Polycarbonate (PC) were prepared by solution casting. Glass transition temperatures (T_ps) were measured by differential scanning calorimeter for the SPEEK-PEI blends and SPEEK-PC blends. Single T_g was observed in SPEEK-PEI blends which indicates the miscibility between the SPEEK and PEI phases. Double figs were observed in the blends of SPEEK-PC which indicate phase separation between the SPEEK and PC phases Polymer-Polymer interaction parameters (χ₁₂) for the SPEEK-PEI blends and SPEEK-PC blends were calculated using the thermal analysis results. Phase behavior of the SPEEK-PEI-PC ternary blends was studied using the χ₁₂ values which were obtained from the binary blends of SPEEK-PEI, SPEEK-PC, and PEI-PC From this result, single phase was calculated in the region of SPEEK-PEI blends and phase separation was calculated In the most of the other region. ∫a results obtained from the DSC measurements of SPEEK-PEI-PC ternary blends were found to be consistent with the phase behavior of the SPEEK- PEI -PC ternary blends.

Keywords:polycarbonate;poly(ether ether ketone);poly(ether imide);sulfonation;ternary blend

[References]

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[2] Olabisi O, Robeson LM, Shaw MT, "Polymer-Polymer Miscibility," p. 349, Academic Press (1979)

[3] Caneba GT, Kandivaju S, Adv. Polym. Technol., 10, 237 (1990)

[4] Teh JW, Rudin A, Polym. Eng. Sci., 31, 133 (1991)

[5] Karcha RJ, Porter RS, J. Polym. Sci. B: Polym. Phys., 31, 821 (1993)

[6] Cowie JMG, Reilly AAN, Polymer, 33, 4814 (1992)

[7] Hseih DT, Peiffer DG, Polymer, 33, 1210 (1992)

[8] Vorenkamp EJ, Challa G, Polymer, 29, 86 (1988)

[9] Shibuya N, Porter RS, Macromolecules, 27(22), 6267 (1994)

[10] Christian B, Williams DJ, Karasz FE, Macknight WJ, Polymer, 28, 1009 (1987)

[11] Lee JS, Marvel CS, J. Polym. Sci., 22, 295 (1984)

[12] Ogawa T, Marvel CS, J. Polym. Sci., 23, 1231 (1985)

[13] Litter IM, Marvel CS, J. Polym. Sci., 23, 2205 (1985)

[14] Jin X, Bishop TM, Ellis ST, Brit. Polym. J., 17, 4 (1985)

[15] Katsaros JD, Malone MF, Winter HH, Polym. Eng. Sci., 29, 1434 (1989)

[16] Kwei TK, Frisch HL, Radigan W, Vogel S, Macromolecules, 10, 157 (1977)

[17] Pomposo JA, Cortazar M, Calahorra E, Macromolecules, 27(1), 252 (1994)

[18] Su AC, Fried JR, Polym. Eng. Sci., 27, 1657 (1987)

[19] Fox TG, Bull. Am. Phys. Soc., 1, 123 (1956)

[20] Couchman PR, Macromolecules, 11, 1156 (1978)

[21] Lee HS, Kim WN, Polymer, 38(11), 2657 (1997)

[22] Kim WN, Burns CM, Macromolecules, 20, 1876 (1987)

[23] Lu X, Weiss RA, Macromolecules, 25, 3242 (1992)

[24] Lu X, Weiss RA, Macromolecules, 24, 4381 (1991)

[25] Scott RL, J. Chem. Phys., 17, 279 (1949)

[26] Tompa H, Trans. Faraday Soc., 45, 1142 (1949)

[27] Patterson D, Polym. Eng. Sci., 22, 64 (1982)

[28] Hsu CC, Prausnitz JM, Macromolecules, 7, 320 (1974)

[29] Chun YS, Lee HS, Oh TS, Kim WN, Polym.(Korea), 19(6), 913 (1995)