Two-Step Synthesis and Properties of Copoly(Aryl Ether Sulfone) Containing Phthalazinone

被引：0
|
作者：
Dang X. [1 ]
Liu C. [1 ,2 ]
Shi Z. [3 ]
Jia H. [1 ]
Dong J. [3 ]
Qiao Y. [1 ]
Jian X. [1 ,2 ]
机构：
[1] Department of Polymer Materials, School of Chemical Engineering, Dalian University of Technology, Dalian
[2] Liaoning High Performance Polymer Engineering Research Center, Dalian
[3] Sinopec Dalian Research Institute of Petroleum and Petrochemicals, Dalian
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2022年 / 38卷 / 10期
关键词：
Copoly(aryl ether sulfone); Heat resistance; Phthalazinone; Solubility; Two-step method;
D O I：
10.16865/j.cnki.1000-7555.2022.0234
中图分类号：
学科分类号：
摘要：
High-temperature-solution polymerization of 4-(4-hydroxyphenyl)-2,3-diazanaphthalene-1-one (DHPZ), 2,2- bis(4- hydroxyphenyl) propane (BPA) and 4,4'- dichlorodiphenyl sulfone (DCS) were carried out by two- step method with sulfolane as solvent. A series of copoly(aryl ether sulfone) containing different phthalazinone content (PPAESs) with high molecular weight were synthesized by controlling the ratio of monomers. The characterization of 1H- NMR, FT- IR and wide- angle X- ray diffraction (WXAD) analysis show that the structures of the synthesized polymers are consistent with the designed ones. Compared with one- step polymerization method, the copolymers prepared by two- step exhibit higher number- average molecular weight up to more than 5 × 104 measured by gel permeation chromatography (GPC). Through DSC and TGA thermal analysis, the glass transition temperatures (Tg) of PPAESs range from 197 ℃ to 257 ℃, and the 5% mass loss temperatures ranges from 486 ℃ to 495 ℃. Furthermore, PPAESs are soluble in some polar aprotic solvents, such as chloroform, N,N-dimethylacetamide (DMAc) and N- methylpyrrolidone (NMP). The tensile strength, tensile modulus and the elongation at break of PPAESs membrane are in the range of 55~77 MPa, 1.71~1.94 GPa and 4%~7%, respectively. © 2022, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：1 / 7and16
页数：715
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