TY - JOUR
T1 - Blends of polycarbonate and poly(ε-caprolactone) and the determination of the polymer-polymer interaction parameter of the two polymers
AU - Chun, Yong Sung
AU - Park, Junghoon
AU - Sun, Jong Baek
AU - Kim, Woo Nyon
PY - 2000/8/1
Y1 - 2000/8/1
N2 - The thermal properties of blends of polycarbonate (PC) and poly(ε-caprolactone) (PCL) were investigated by differential scanning calorimetry (DSC). From the thermal analysis of PC-PCL blends, a single glass-transition temperature (Tg) was observed for all the blend compositions. These results indicate that there is miscibility between the two components. From the modified Lu and Weiss equation, the polymer-polymer interaction parameter (χ12) of the PC-PCL blends was calculated and found to range from -0.012 to -0.040 with the compositions. The χ12 values calculated from the Tg method decreased with the increase of PC weight fraction. By taking PC-PCL blend as a model system, the values of χ12 were compared with two different methods, the Tg method and melting point depression method. The two methods are in reasonably good agreement for the χ12 values of the PC-PCL blends.
AB - The thermal properties of blends of polycarbonate (PC) and poly(ε-caprolactone) (PCL) were investigated by differential scanning calorimetry (DSC). From the thermal analysis of PC-PCL blends, a single glass-transition temperature (Tg) was observed for all the blend compositions. These results indicate that there is miscibility between the two components. From the modified Lu and Weiss equation, the polymer-polymer interaction parameter (χ12) of the PC-PCL blends was calculated and found to range from -0.012 to -0.040 with the compositions. The χ12 values calculated from the Tg method decreased with the increase of PC weight fraction. By taking PC-PCL blend as a model system, the values of χ12 were compared with two different methods, the Tg method and melting point depression method. The two methods are in reasonably good agreement for the χ12 values of the PC-PCL blends.
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U2 - 10.1002/1099-0488(20000801)38:15<2072::AID-POLB120>3.0.CO;2-4
DO - 10.1002/1099-0488(20000801)38:15<2072::AID-POLB120>3.0.CO;2-4
M3 - Article
AN - SCOPUS:0034249339
SN - 0887-6266
VL - 38
SP - 2072
EP - 2076
JO - Journal of Polymer Science, Part B: Polymer Physics
JF - Journal of Polymer Science, Part B: Polymer Physics
IS - 15
ER -