சுற்றுச்சூழல் பகுப்பாய்வு வேதியியல் இதழ்

Synthesis and Characterization of New Soluble Poly (Arylene Ether Ketone)s

Abstract

Nasrin Paya, Mehdi Ghaffari and Hossein Mighani

A novel bisfluoro monomer was synthesized in two steps:

1) 9-ethylcarbazoleobtained obtained from 9H-Carbazole and 1-bromoethane, and

2) a new 3, 6-bis-4-fluorobenzoyl-9-ethylcarbazole monomer was obtained from 9-ethylcarbazole and 4- fluorobenzoylchloride; it was then used to prepare novel Poly (Arylene Ether Ketone)s (PAEKs). FTIR and 1HNMR methods were used to characterize the synthesized monomers and polymers. Further, solubility tests showed that PAEKs were generally soluble in a wide range of solvents including Dimethyl Acetamide (DMAc), NMethylpyrrolidone (NMP), Dimethyl Sulfoxide (DMSO) and H2SO4. Thermo Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) indicate that the synthesized PAEKs showed only 10% weight loss in air up to 410°C and were essentially amorphous.