Phase Behavior and Hydrogen Bonding in Poly(ethylene-co-vinyl alcoho)/Poly(N-vinyl-2-pyrrolidone) Blends

Ahn SB; Jeong HM

Korea Polymer Journal, Vol.6, No.5, 389-395, December, 1998

The miscibility of poly (ethylene-co-vinyl alcohol) (EVOH) with poly(N-vinyl-2-pyrrolidone)(PVP) was studied by means of differential scanning calorimetry and Fourier transform infrared spectroscopy. When the content of vinyl alcohol repeating unit in EVOH was 57 or 45 mol%, the EVOH/PVP blends had the miscibility showing single T_g. In these iscible blends, the hydrogen bonds of both hydroxyl and carbonyl band were enhanced upon blending. However, when the content of vinyl aalcohol repeating unit in EVOH was 18 or 10mol%, the EVOH?PVP blends showed phase separation behavior, and the degree of hydrogen bond of hydroxyl group was reduced upon blending.

[References]

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[1] Coleman MM, Painter PC, Prog. Polym. Sci., 20, 1 (1995)

[2] Ahn TO, Kim CK, Kim BK, Jeong HM, Huh JD, Polym. Eng. Sci., 30, 341 (1990)

[3] Colemann MM, Yang X, Zhang H, Painter PC, J. Macromol. Sci.-Phys., B32, 295 (1993)

[4] Isasi JR, Cesteros LC, Katime I, Macromol. Rapid Commun., 15, 903 (1994)

[5] Seggiani M, Lazzeri L, giusti P, J. Mater. Sci. Mater. Med., 5, 877 (1994)

[6] Akiba I, Akiyama S, Polym. J., 26, 873 (1994)

[7] Zhu KJ, Liqun W, Ji W, Shilin Y, Macromol. Chem. Phys., 195, 1965 (1994)

[8] Masson JF, Manley RJ, Macromolecules, 24, 6670 (1991)

[9] Low SM, Goh SH, Lee SY, Neo MK, Polym. Bull., 32(2), 187 (1994)

[10] Janarthanan V, Thyagarajan G, Polymer, 33, 3593 (1992)

[11] Coleman MM, Graf JF, Painter PC, Specific Interactions and the Miscibility of Polymer Blends Technomic Lancaster, Pennsylvania (1991)

[12] Opazo A, Gargallo L, Radic D, Polym. Bull., 27, 205 (1991)

[13] Belorgey G, Prudhomme RE, J. Polym. Sci. B: Polym. Phys., 20, 191 (1982)

[14] Ahn TO, Han KT, Jeong HM, Lee SW, Polym. Int., 29, 115 (1992)

[15] Goh SH, Siow KS, Polym. Bull., 23, 205 (1990)

[16] Deilarduya AM, Iruin JJ, Fernandezberridi MJ, Macromolecules, 28(10), 3707 (1995)

[17] Ping ZH, Nguyen QT, Neel J, Makromol. Chem., 191, 185 (1990)

[18] Dai J, Goh SH, Lee SY, Siow KS, Polym. J., 27, 558 (1995)