38791-73-0Relevant academic research and scientific papers
Promoting effect of methyne/methylene moiety of bisphenol E/F on phthalonitrile resin curing: Expanding the structural design route of phthalonitrile resin
He, Xian,Hu, Jiang-huai,Li, Renke,Liao, Shenjun,Liu, Yang,Liu, Yao,Liu, Zhengzhou,Lv, Jiangbo,Wu, Hao,Yang, Gang,Zeng, Ke
, (2020)
In this paper, three phthalonitrile (PN) model compounds containing benzene ring-linked alkyl units, bisphenol A (methyl) phthalonitrile monomer (BPAh), bisphenol E (methyne) phthalonitrile monomer (BPEh) and bisphenol F (methylene) phthalonitrile monomer (BPFh), were synthesized. It was confirmed that methylene/methyne could effectively promote the curing reaction of phthalonitrile. Rheology analysis showed that the promotion effect of methylene is stronger than that of methyne, but methyl has no obvious promotion effect. The effect of DPPH on the reaction rate, added considerable evidences that the curing reaction of BPEh and BPFh involved a free radical process. Qualified thermal properties were investigated by Dynamic mechanical analysis (DMA) and thermal gravimetric analysis (TGA). For post-cured resin of BPEh and BPFh, the Tg is more than 500 °C, the T5% were observed at 495 °C and 491 °C, and the char yield in 800 °C reached 73.1% and 71.9% respectively.
Alkyl-containing phthalonitrile monomer with autocatalytic curing effect, preparation method and application thereof
-
Paragraph 0030-0036, (2019/10/04)
The invention discloses an alkyl-containing phthalonitrile monomer with autocatalytic curing effect, a preparation method and an application of the alkyl-containing phthalonitrile monomer. The structural formula of the alkyl-containing phthalonitrile monomer is as shown in the specification. A catalytic unit alkyl group is introduced into the alkyl phthalonitrile monomer, so that self-catalytic curing can be realized; compared with the existing phthalonitrile monomer, the product has the advantages that the curing rate is obviously increased in the application of preparing phthalonitrile resin, and the obtained phthalonitrile resin has excellent thermal stability and thermal oxidation stability.
Aromatic bis(ether phthalis anhydride) compounds
-
, (2008/06/13)
Aromatic bis(ether anhydride)s are prepared from the hydrolysis of the reaction product of a nitro-substituted phenyl dinitrile with a metal salt of a dihydroxy aryl compound in the presence of a dipolar aprotic solvent.
