Poly(arylene ether sulfone) containing diphenyl-biphthalazin-dione moieties with excellent thermal resistance

• Published in: Polymer (Guilford) Vol. 243; p. 124653
• Main Authors: Wu, Kaiwen, Zhang, Shouhai, Liu, Qian, Xu, Peiqi, Zhang, Jie, Wang, Danhui, Zhuo, Lin, Jian, Xigao
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 14.03.2022; Elsevier BV
• Subjects: Chloroform; Diphenyl-biphthalazin-dione; Heat transfer; Mechanical properties; Modulus of elasticity; NMR; Nuclear magnetic resonance; Organic solvents; Poly(arylene ether sulfone); Solubility; Storage modulus; Tensile strength; Thermal resistance; Poly(arylene ether sulfone); Diphenyl-biphthalazin-dione; Thermal resistance; Solubility
• ISSN: 0032-3861; 1873-2291
• DOI: 10.1016/j.polymer.2022.124653

A series of novel poly(arylene ether sulfone)s containing diphenyl-biphthalazin-dione moieties (PPDESs) are synthesized from 4-(4-hydroxyphenyl)-2,3-phthalazin-1-one, 4,4′-dichlorodiphenyl sulfone and diphenyl-biphthalazin-dione. Structural analyses such as NMR, FT-IR, instinct viscosity and XRD, as well as property tests including TGA, DSC, DMA, solubility and mechanical properties were carried out on PPDESs. The Tg of PPDESs is up to 388 °C, suggesting that PPDESs show excellent thermal resistance. The 5% mass loss temperature (Td5) of PPDESs is up to 513 °C. PPDESs possess excellent mechanic and thermo-mechanical performance which Young's modulus above 1.95 GPa, the tensile strength up to 107 MPa and the storage modulus retention up to 51.6% at 300 °C. Additionally, PPDESs exhibit an appropriate solubility in organic solvents such as chloroform, 1,1,2,2-tetrachloroethane, N-methyl pyrrolidone and so on. With the increasing introduction of the diphenyl-biphthalazin-dione, the thermal resistance and mechanical properties of PPDES are improved, while the solubility is slightly reduced. [Display omitted] ●The poly(arylene ether sulfone)s with diphenyl-biphthalazin-dione moieties are prepared.●Novel polymers combine excellent thermal resistance with favorable solubility.●The highest glass transition temperature of poly(arylene ether sulfone)s is up to 388 °C.