Abstract
The oxygen permeation and blending properties of the MPAEVOH blends of modified polyamide (MPA) and ethylene vinyl alcohol copolymer (EVOH) with varying vinyl alcohol contents were systematically investigated in this study. The oxygen permeation rates of EVOH film specimens are dramatically slower than that of the PE specimen and reduce significantly as their vinyl alcohol contents increase. After blending EVOH in MPA resin, the oxygen permeation rates of each MPAEVOH series film specimens reduce significantly as their EVOH and/or vinyl alcohol contents increase, respectively. At some optimum compositions, the oxygen permeation rates of the MPAEVOH film specimens are even lower than that of the pure EVOH film specimen with a vinyl alcohol content of 52 wt%. On the other hand, the average radius (R f), volume (V f) of the free-volume-cavities and fractional free-volume (F v) values of each MPAEVOH series specimens reduce significantly as their EVOH and/or vinyl alcohol contents increase. These interesting barrier and free-volume properties of the EVOH and MPAEVOH specimens with varying vinyl alcohol contents were investigated in terms of the intermolecular interaction and/or free-volume properties in the amorphous phases of the EVOH and MPAEVOH specimens obtained in this study.
Similar content being viewed by others
References
Iwanamy T, Hiral Y (1983) Tappi J 66:85
Tanaka Y (1989) Jpn Food Sci 7:49
Ozeki Y, Kim J (1996) In: Salamone JC (ed) Polymeric materials encyclopedia, vol 3. CRC, New York, p 2284
Finch CA (1992) In: Polyvinyl alcohol. John Wiley and Sons, New York, p 258
Tsai BC, Wachtel JA (1989) In: Koros WJ (ed) Barrier polymers and structures, ACS symposium series 423. American Chemical Society, Washington, DC, p 192
Brown WE (1992) In: Plastics in food packaging. Marcel Dekker, New York, p 301
Odorzynski TW (1982) U.S. Patent no. 4347332
Pottsville AD (1984) U.S. Patent no. 4427825
Subramanian PM (1983) U.S. Patent no. 4410482
Subramanian PM (1984) U.S. Patent no. 4444817
Yeh JT, Jou WS, Su YS (1999) J Appl Polym Sci 9:2158
Yeh JT, Wang LH, Chen KN, Jou WS (2001) J Mater Sci 36:1891
Yeh JT, Shyu WD, Chen CH (2001) J Appl Polym Sci 80:1122
Subramanian PM (1985) Polym Eng Sci 25:483
Subramanian PM (1987) Polym Eng Sci 27:663
Diluccio RC (1983) U.S. Patent no. 4416942
Yeh JT, Fan-Chiang CC (1995) Cho MF Polym Bull 35:371
Yeh JT, Fan-Chiang CC, Yang SS (1997) J Appl Polym Sci 64:1531
Yeh JT, Fan-Chiang CC (1997) J Appl Polym Sci 66:2517
Yeh JT, Fan-Chiang CC (1996) J Polym Res 3:211
Yeh JT, Jyan CF (1998) Polym Eng Sci 38:1482
Yeh JT, Jyan CF, Chou S (1998) SPE Antec 3:3567
Yeh JT, Yang SS, Jyan CF, Chou S (1999) Polym Eng Sci 39:1952
Yeh JT, Chao CC, Chen CH (2000) J Appl Polym Sci 76:1997
Yeh JT, Shih WS, Huang SS (2002) Macromol Mater Eng 287:23
Yeh JT, Chang SS, Yao HT, Chen KN, Jou WS (2000) J Mater Sci 35:1
Yeh JT, Huang SS, Yao WH (2002) Macromol Mater Eng 287:532
Yeh JT, Yao WH, Du QG, Chen CC (2005) J Polym Sci Part B Polym Phys 43:511
Yeh JT, Huang SS, Chen HY (2005) Polym Eng Sci 45:25
Yeh JT, Huang SS, Chen HY (2005) J Appl Polym Sci 97:1333
Yeh JT, Chen HY, Tsai FC (in press) J Appl Polym Sci
Nakanishi H, Jean YC, Smith EG, Sandreczki TC (1989) J Polym Sci Polym Phys Ed 27:1419
Nakanishi H, Wang SJ, Jean YC (1988) In: Sharma SC (ed) Positron annihilation in fluids. World Scientific, Singapore, p 753
Deng Q, Sundar CS, Jean YC (1992) J Phys Chem 96:492
Wang YY, Nakanishi H, Jean YC, Sandreczki TC (1990) J Polym Sci Polym Phys Ed 28:1431
Skrovanek DJ, Howe SE, Painter PC, Coleman MM (1985) Macromolecules 18:1676
Coleman MM, Yang X, Zhang H, Painter PC (1993) J Macromol Sci Phys B32:295
Moskala EJ, Varnell DF, Coleman MM (1985) Polymer 26:228
Person WB, Zerbi G (1982) In Vibrational intensities in infrared and Ramam spectroscopy. Elsevier, New York, p 159
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yeh, JT., Chen, HY. Blending and oxygen permeation properties of the blown films of blends of modified polyamide and ethylene vinyl alcohol copolymer with varying vinyl alcohol contents. J Mater Sci 42, 5742–5751 (2007). https://doi.org/10.1007/s10853-006-0555-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-006-0555-0