Synthesis and Characterization of Polyetherimides Derived from AB Monomers

Abstract

Four novel imides group containing AB monomers, N-(4-hydroxyphenyl)-4-nitrophthalimide, N-(3-hydroxyphenyl)-4-nitrophthalimide, N-(5-hydroxy napthyl)-4-nitrophthalimide, and N-4-[2-(4-hydroxyphenyl) isopropyl phenyl]-4-nitrophthalimide (IIIa-d) were synthesized and characterized by IR, and NMR.The polyetherimides were prepared by self polycondensation reaction of AB monomers. The polymers were obtained in 84–88% yield and had inherent viscosity in the range 0.42–0.47 dL/g. The polymers were characterized by IR, X-ray, TGA, DSC and solubility. All the polymers were readily soluble in polar aprotic solvents and had 10% weight loss temperature above 396°C in nitrogen.

Keywords:

• Polyetherimides
• AB monomers
• structure-property relationship

Acknowledgement

The authors express their thanks to SASTRA University for financial support (T.R.Rajagopalan Fund).

Notes

^a Ar = aromatic, s = singlet, m = multiplet

^a Measured in DMF at 30°C, C = 0.5 g/dL

^a + = Soluble at room temperature, +− = Soluble on heating,- = Insoluble