Miscibility of poly(ether imide)/poly(ethylene terephthalate) blends |
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| Authors: | Won Ho Jo Me Ryeong Lee Byung Ghyl Min Moo Sung Lee |
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| Affiliation: | (1) Department of Fiber and Polymer Science, Seoul National University, 151-742 Seoul, Korea;(2) Fiber Science Laboratory, Korea Institute of Science and Technology, 136-791 Seoul, Korea;(3) Department of Textile Engineering, Chonnam National University, 500-757 Kwangju, Korea |
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| Abstract: | Summary Miscibility of blends of poly(ether imide) (PEI) and poly(ethylene terephthalate) (PET) were studied by differential scanning calorimetry (DSC). Single and composition-dependent Tg's are observed over the entire composition range, indicating that the blends are miscible in the amorphous region. The overall crystallization rate of PET in the blends decreased with increasing the PEI content. The interaction energy density B, which was calculated from the melting point depression of the blends using Nishi-Wang equation, was-5.5 cal/cm3. |
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