Tetramethyl bisphenol-A polyarylate(TMPAr) was synthesized with the prepared tetramethyl bisphenol-A(TMBPA) monomer. TMPArwas blended with poly(hexamethylene sebacate)(PHS) by solvent casting and the miscibility of TMPAr/PHS blends was examined with the glass transition behaviour measured by differential scanning calorimetry(DSC). TMPAr was found to be miscible with PHS at all compositions and interaction parameter. B determined from melting point depression method was -2.74(cal/cm3.
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