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以4-[4-(4羧基苯氧基)苯基]-2-(4-羧基苯基)二氮杂萘-1-酮(DHPZ-DA)、4,4′-二羧基二苯醚(DAPE)和2,2′-二(4-羟基苯基)丙烷(PBA)为原料,采用溶液缩聚法,合成了一系列聚芳酯,其数均分子量在1.2×104～1.7×104之间.通过FTIR和1 H-NMR对聚芳酯结构进行了表征.该系列聚芳酯具有无定形结构,可以溶解于吡啶(Py)、N-甲基吡咯烷酮(NMP)、四氢呋喃(THF)、氯仿和N,N-二甲基甲酰胺(DMF)等极性非质子有机溶剂.该系列聚芳酯的玻璃化转变温度(Tg)随着4-苯基二氮杂萘酮含量增加而升高,最高可达229℃,在N2中10%热失重温度为462～490℃,最大热失重速率温度为480～517℃.该系列聚芳酯可以通过溶液浇铸成膜,聚合物膜具有良好的透明性和韧性,其拉伸强度为61～80 MPa,杨氏模量为0.93～1.38 GPa,断裂伸长率为13%～18%.
(4-carboxyphenoxy) phenyl] -2- (4-carboxyphenyl) phthalazin-1-one (DHPZ-DA), 4,4’-dicarboxydiphenyl ether (DAPE) and 2,2’-bis (4-hydroxyphenyl) propane (PBA) as raw materials, a series of polyarylates were synthesized by solution polycondensation. The number average molecular weights of these polyarylates were 1.2 × 104 ~ 1.7 × 104 The polyarylate structures were characterized by FTIR and 1 H-NMR.The polyaryls have the amorphous structure and can be dissolved in pyridine, N-methyl pyrrolidone, tetrahydrofuran, Chloroform and N, N-dimethylformamide (DMF), etc. The glass transition temperature (Tg) of this series of polyarylates increases with the increase of 4-phenylazinonone High, up to 229 ° C. The 10% weight loss temperature in N2 is 462-490 ° C. and the maximum weight loss temperature is 480-517 ° C. The series of polyarylates can be film-cast by solution and the polymer films have good The tensile strength is 61-80 MPa, the Young’s modulus is 0.93-1.38 GPa, and the elongation at break is 13-18%.