The effect of transreactions on phase behavior in poly(ethylene 2,6-naphthalate) and poly(ethylene isophthalate) blends
- Authors
- Chang, YK; Youk, JH; Jo, WH; Lee, SC
- Issue Date
- 6-Sep-1999
- Publisher
- JOHN WILEY & SONS INC
- Keywords
- transreactions; phase composition; degree of randomness; phase fraction
- Citation
- JOURNAL OF APPLIED POLYMER SCIENCE, v.73, no.10, pp 1851 - 1858
- Pages
- 8
- Journal Title
- JOURNAL OF APPLIED POLYMER SCIENCE
- Volume
- 73
- Number
- 10
- Start Page
- 1851
- End Page
- 1858
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/26760
- DOI
- 10.1002/(SICI)1097-4628(19990906)73:10<1851::AID-APP4>3.0.CO;2-1
- ISSN
- 0021-8995
1097-4628
- Abstract
- The effect of transreactions on the phase behavior in poly(ethylene 2,6-naphthalate) and poly(ethylene isophthalate) blends was investigated by using differential scanning calorimetry. The transreactions between two polymers were confirmed by H-1 nuclear magnetic resonance. At the beginning step of transreactions, the blend samples show two glass transitions. However, after transreactions occur to some extent (i.e., when the degree of randomness is >0.4), a single glass transition is observed. As the transreactions proceed, the composition difference between ethylene 2,6-naphthalate-rich and ethylene isophthalate-rich phases lessens. Additionally, the weight fraction of each phase decreases because of the increment of interfacial fraction with the lapse of reaction time. (C) 1999 John Wiley & Sons, Inc.
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