Synthesis and Characterization of Poly(ether amide)s Containing Phthalazinone Moieties |
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Authors: | JIAN Xi-gao CHEN Lian-zhou GUO Xiao-yuan SUN Wen-xun |
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Institution: | Department of Polymer Science & Material, Dalian University of Tech., Dalian 116012, P. R. China |
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Abstract: | Soluble aromatic polyamides containing phthalazinone moieties were prepared.Those polymers were obtained from the solution polymerization of a new diacid containing phthalazinone moieties with various diamines.The new monomer, 2-(4-carboxyphenyl)-4-(4- carboxyphenoxy) phenyl-1 (2H) phthalazinone (Ⅳ) was synthesized in a two-step reaction sequence.2- (4-Cyanophenyl)-4-(4-cyanophenoxy)phenyl-1 (2H)phthalazinone (Ⅲ) was prepared via the condensation reaction of 4-(4-hydroxyphenyl)-1 (2H) phthalazinone (I) with p-chlorobenzonitrile (Ⅱ).After (Ⅲ) was hydrolyzed, (Ⅳ) was acquired.The synthesized polyamides were characterized by means of viscosimetry, DSC, FT-IR, 1H NMR and EA.The polyamides have a high glass transition temperature which can be as high as 316 C.The polyamides also have good solubilities in some organic solvents. |
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Keywords: | Phthalazinone Diacid Diamine Polyamide Direct polycondensation |
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