International Journal of Pure and Applied Chemistry (IJPAC)

 

6. Synthesis, Characterization and Thermal stability of Maleimide polymers with modified-monomers

B. L. Hiran* and Shiv Narayan Paliwal


Polymer Research and Chemical Kinetics laboratory Department of Chemistry, M. L. S. University, Udaipur (Raj.) India.313 001
* Email: hiranbl@rediffmail.com Email: paliwalsn_1982in@yahoo.co.in

Abstract: The novel functionalized N- [4-N′-(anilino amino carbonyl) phenyl] maleimide (APM) was synthesized starting from p-aminobenzoic acid maleic anhydride and phenyl hydrazine. The homopolymer of APM is synthesized by free radical using AIBN in tetra hydrofuran (THF) solvent at 65˚C. The copolymer of APM and methyl methacrylate (MMA) were synthesized using AIBN as a free radical initiator in THF. The nine copolymer samples were synthesized from different feed ratio of comonomers. The copolymer composition and reactivity ratio were determined by nitrogen-elemental analysis and fineman ross method. The reactivity ratio and Alfrey Price Q-e value is as follows: r1(APM) =0.14, r2(MMA)=0.72, Q=0.23 and e=2.25. The homo and copolymers were also synthesized in various solvent initiator system and different time. The synthesized homopolymer and copolymer were characterized by intrinsic viscosity, solubility test, FT-IR, 1H-NMR spectral analysis and elemental analysis. The molecular weight was determined by gel permeation chromatography (GPC) and thermal behavior was studied by thermo gravimetric analysis. It was observed that such polymers shows better thermal stability than the polymers of vinyl monomers.
 

Keywords: N-[4-N′-(anilino amino-carbonyl) phenyl] maleimide, MMA, Reactivity Ratio, Molecular weight, Characterization.
 

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