Blending and oxygen permeation properties of the blown films of blends of modified polyamide and ethylene vinyl alcohol copolymer with varying vinyl alcohol contents
Source abstract
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.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polymer crystallization and properties · Dielectric materials and actuators · High voltage insulation and dielectric phenomena
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References (39)
Show source-provided references
1. Iwanamy T, Hiral Y (1983) Tappi J 66:85
2. Tanaka Y (1989) Jpn Food Sci 7:49
3. Ozeki Y, Kim J (1996) In: Salamone JC (ed) Polymeric materials encyclopedia, vol 3. CRC, New York, p 2284
4. Finch CA (1992) In: Polyvinyl alcohol. John Wiley and Sons, New York, p 258
5. Tsai BC, Wachtel JA (1989) In: Koros WJ (ed) Barrier polymers and structures, ACS symposium series 423. American Chemical Society, Washington, DC, p 19210.1021/bk-1990-0423.ch009 ↗
6. Brown WE (1992) In: Plastics in food packaging. Marcel Dekker, New York, p 301
7. Odorzynski TW (1982) U.S. Patent no. 4347332
8. Pottsville AD (1984) U.S. Patent no. 4427825
9. Subramanian PM (1983) U.S. Patent no. 4410482
10. Subramanian PM (1984) U.S. Patent no. 4444817
11. Yeh JT, Jou WS, Su YS (1999) J Appl Polym Sci 9:215810.1002/(SICI)1097-4628(19991128)74:9<2158::AID-APP6>3.0.CO;2-7 ↗
12. Yeh JT, Wang LH, Chen KN, Jou WS (2001) J Mater Sci 36:189110.1023/A:1017525304041 ↗
13. Yeh JT, Shyu WD, Chen CH (2001) J Appl Polym Sci 80:1122
14. Subramanian PM (1985) Polym Eng Sci 25:48310.1002/pen.760250810 ↗
15. Subramanian PM (1987) Polym Eng Sci 27:66310.1002/pen.760270910 ↗
16. Diluccio RC (1983) U.S. Patent no. 4416942
17. Yeh JT, Fan-Chiang CC (1995) Cho MF Polym Bull 35:37110.1007/BF00963137 ↗
18. Yeh JT, Fan-Chiang CC, Yang SS (1997) J Appl Polym Sci 64:153110.1002/(SICI)1097-4628(19970523)64:8<1531::AID-APP11>3.0.CO;2-0 ↗
19. Yeh JT, Fan-Chiang CC (1997) J Appl Polym Sci 66:251710.1002/(SICI)1097-4628(19971226)66:13<2517::AID-APP14>3.0.CO;2-U ↗
20. Yeh JT, Fan-Chiang CC (1996) J Polym Res 3:21110.1007/BF01493490 ↗
21. Yeh JT, Jyan CF (1998) Polym Eng Sci 38:148210.1002/pen.10319 ↗
22. Yeh JT, Jyan CF, Chou S (1998) SPE Antec 3:3567
23. Yeh JT, Yang SS, Jyan CF, Chou S (1999) Polym Eng Sci 39:195210.1002/pen.11588 ↗
24. Yeh JT, Chao CC, Chen CH (2000) J Appl Polym Sci 76:199710.1002/(SICI)1097-4628(20000628)76:14<1997::AID-APP2>3.0.CO;2-6 ↗
25. Yeh JT, Shih WS, Huang SS (2002) Macromol Mater Eng 287:2310.1002/1439-2054(20020101)287:1<23::AID-MAME23>3.0.CO;2-P ↗
26. Yeh JT, Chang SS, Yao HT, Chen KN, Jou WS (2000) J Mater Sci 35:110.1023/A:1004734725783 ↗
27. Yeh JT, Huang SS, Yao WH (2002) Macromol Mater Eng 287:53210.1002/1439-2054(20020801)287:8<532::AID-MAME532>3.0.CO;2-F ↗
28. Yeh JT, Yao WH, Du QG, Chen CC (2005) J Polym Sci Part B Polym Phys 43:51110.1002/polb.20344 ↗
29. Yeh JT, Huang SS, Chen HY (2005) Polym Eng Sci 45:2510.1002/pen.20226 ↗
30. Yeh JT, Huang SS, Chen HY (2005) J Appl Polym Sci 97:133310.1002/app.21837 ↗
31. Yeh JT, Chen HY, Tsai FC (in press) J Appl Polym Sci
32. Nakanishi H, Jean YC, Smith EG, Sandreczki TC (1989) J Polym Sci Polym Phys Ed 27:141910.1002/polb.1989.090270704 ↗
33. Nakanishi H, Wang SJ, Jean YC (1988) In: Sharma SC (ed) Positron annihilation in fluids. World Scientific, Singapore, p 753
34. Deng Q, Sundar CS, Jean YC (1992) J Phys Chem 96:49210.1021/j100180a088 ↗
35. Wang YY, Nakanishi H, Jean YC, Sandreczki TC (1990) J Polym Sci Polym Phys Ed 28:143110.1002/polb.1990.090280902 ↗
36. Skrovanek DJ, Howe SE, Painter PC, Coleman MM (1985) Macromolecules 18:167610.1021/ma00151a006 ↗
37. Coleman MM, Yang X, Zhang H, Painter PC (1993) J Macromol Sci Phys B32:29510.1080/00222349308215486 ↗
38. Moskala EJ, Varnell DF, Coleman MM (1985) Polymer 26:22810.1016/0032-3861(85)90034-5 ↗
39. Person WB, Zerbi G (1982) In Vibrational intensities in infrared and Ramam spectroscopy. Elsevier, New York, p 159