Blends of poly(vinyl butyral-co-vinyl alcohol) and poly(ethylene terephthalate-co-ethylene naphthalate): Thermal, mechanical, and morphological properties
- Authors
- Chang, JH; Park, KM; Kang, CS; Jeong, HK
- Issue Date
- 28-Jun-2001
- Publisher
- JOHN WILEY & SONS INC
- Keywords
- PETN; PVBA; miscibility; tensile property; morphology
- Citation
- JOURNAL OF APPLIED POLYMER SCIENCE, v.80, no.14, pp 2746 - 2751
- Pages
- 6
- Journal Title
- JOURNAL OF APPLIED POLYMER SCIENCE
- Volume
- 80
- Number
- 14
- Start Page
- 2746
- End Page
- 2751
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27056
- DOI
- 10.1002/app.1389
- ISSN
- 0021-8995
1097-4628
- Abstract
- The miscibility behavior and morphology of a series of poly(vinyl butyralco-vinyl alcohol) (PVBA) copolymers containing 29, 52, 76, and 88 mol % of vinyl alcohol units with poly(ethylene terephthalate-co-ethylene naphthalate) (PETN) was investigated by DSC and SEM. Blends of the PETN with PVBA were prepared by coprecipitation from a chloroform/o-chlorophenol (20/80 wt %) mixture solvent. It was found that PVBAs with different vinyl alcohol content will form an immiscible phase with the amorphous PETN in the solution-cast films. Also, PETN and PVBA with 29 mol % vinyl alcohol (PVBA-29) are not miscible within the whole composition range. The glass-transition temperatures of the blends were higher than those of the two-component polymers. The values of the tensile properties of the blend films were also better than those of the original copolymer films. (C) 2001 John Wiley & Sons, Inc.
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