標題: Phase behavior and hydrogen bonding in ternary polymer blends of phenolic resin/poly(ethylene oxide)/poly(epsilon-caprolactone)
作者: Kuo, SW
Lin, CL
Chang, FC
應用化學系
Department of Applied Chemistry
公開日期: 1-Jan-2002
摘要: The phase behavior and hydrogen bonding in ternary polymer blends of phenolic resin, poly(ethylene oxide) (PEO), and poly(epsilon -caprolactone) (PCL) were investigated by using differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR). Although all three binary blends are respective miscible, there exists a closed immiscibility loop in the phase diagram due to the so-called "Delta chi" and "DeltaK" effects in this hydrogen-bonded ternary polymer system. The interassociation equilibrium constant based on the Painter-Coleman association model between phenolic resin and PEO can be indirectly calculated from the fraction of hydrogen-bonded carbonyl groups. Quantitative analyses show that the hydroxyl-ether interassociation is more favorable than the hydroxyl-carbonyl interassociation at room temperature. The interaction energy density value of B-PEO/PCL = -2.85 cal/cm(3) was obtained by comparing the theoretically predicted phase diagram with experimental data.
URI: http://dx.doi.org/10.1021/ma011255f
http://hdl.handle.net/11536/29097
ISSN: 0024-9297
DOI: 10.1021/ma011255f
期刊: MACROMOLECULES
Volume: 35
Issue: 1
起始頁: 278
結束頁: 285
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