Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23085
Title: Flory-huggins interaction parameters of LCP/thermoplastic blends measured by DSC analysis
Authors: Xie, XL
Li, RKY
Tjong, SC
Tang, CY 
Keywords: Flory-Huggins interaction parameter
Miscibility
Poly(butyl terephthalate)
Polyamide 66
Semiflexible liquid crystalline copolyesteramide
Issue Date: 2002
Publisher: Kluwer Academic Publ
Source: Journal of thermal analysis and calorimetry, 2002, v. 70, no. 2, p. 541-548 How to cite?
Journal: Journal of Thermal Analysis and Calorimetry 
Abstract: Liquid crystalline polymer/polyamide 66 (LCP/PA66) and LCP/poly(butyl terephthalate) (LCP/PBT) blends were compounded using a Brabender Plasticorder equipped with a mixing chamber. The LCP employed was a semi-flexible liquid crystalline copolyesteramide based on 30 mol% of p-amino benzoic acid (ABA) and 70 mol% of poly(ethylene terephthalate) (PET). The Flory-Huggins interaction parameters (χ 12) of the LCP/PA66 and LCP/PBT blends are estimated by melting point depression from DSC measurement. The results indicate that χ 12 values all are negative for LCP/PA66 and LCP/PBT blends, and when the LCP content in these blends is more than 10 mass%, the absolute value of χ 12 decreases. Thereby, we can conclude that LCP/PA66 and LCP/PBT blends are fully miscible in the molten state, the molecular interaction between the LCP and PA66 is stronger than that between LCP and PBT. As the LCP content in LCP/PA66 and LCP/PBT blends is more than 10 mass%, the molecular interaction between LCP and matrix polymer decreases.
URI: http://hdl.handle.net/10397/23085
ISSN: 1418-2874
DOI: 10.1023/A:1021640911104
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