高等学校化学学报Issue(11)：2517-2523,7.DOI:10.7503/cjcu20140564
主链含酞和芴结构的无定形聚芳醚酮的合成
Synthesis of Amorphous Polyaryletherketone Containing Phthalein and Fluorene as Side Groups
摘要
Abstract
A series of linear high molecular weight amorphous polyaryletherketone( PAEK) copolymers with phthalein and fluorene side groups was synthesized on the basis of the polyetherketone with phthalein cardo group( PEK-C) . The structures were characterized by FTIR, 1 H NMR, 13 C NMR. Gel permeation chromatog-raphy(GPC) data indicated that the Mn and the Mw of the copolymer were higher than 6. 0×104 and 1. 0×105, respectively, with a polydisperity index(PDI) ranging from 1. 6 to 1. 7. The X-ray diffraction(XRD) data re-vealed that the copolymers were amorphous structure. Thermogravimetric analysis( TGA) and differential scan-ning calorimetry( DSC) tests showed that the copolymers exhibited good heat resistant property. The onset tem-perature of mass loss was higher than 467 ℃. The char yield at 700 ℃ was more than 58. 9%. There was a single glass transition temperature( Tg ) , with Tg>243 ℃. The elastic modulus and elongation at break of the copolymer showed a significant increase, up to 3. 1 GPa and 58%, respectively, which were 1. 4 folds and 8. 3 folds compared to that of PEK-C when the feed ratio of phenolphthalein and 9 ,9-bis ( 4-hydroxyphenyl ) fluorene was between 3:7 and 5:5 . Amorphous polyaryletherketone containing phthalein and fluorene as side groups kept good solubility in chloroform, dichloromethane, tetrahydrofuran(THF), N-methyl-2-pyrrolidone ( NMP) and other aprotic solvents. The mechanical and thermal properties were improved significantly.关键词
无定形聚芳醚酮/共聚物/酚酞/双酚芴/高性能树脂Key words
Amorphous polyaryletherketone/Copolymer/Phenolphthalein/9,9-Bis(4-hydroxyphenyl) fluorene/High-performance resin分类
化学化工引用本文复制引用
王志鹏,王菲菲,王红华,周光远..主链含酞和芴结构的无定形聚芳醚酮的合成[J].高等学校化学学报,2014,(11):2517-2523,7.基金项目
吉林省科技发展计划项目(批准号:20130204029GX)资助 （批准号:20130204029GX）
