Synthesis and Characterization of Homo and Copolymers of N-1-naphthylmaleimide with Methyl methacrylate and Styrene

Patel Mahesh H.; Oswal Shantilal B.

Synthesis and Characterization of Homo and Copolymers of N-1-naphthylmaleimide with Methyl methacrylate and Styrene

Authors

Patel Mahesh H.
Oswal Shantilal B.

Keywords:

maleimide copolymers, polymer synthesis, intrinsic viscosity, reactivity ratios, thermal stability

Abstract

The free radical copolymerization of each of methyl methacrylate (MMA) and styrene (ST) with N-1-naphthylmaleimide (NMI), initiated by AIBN, was performed in tetrahydrofuran (THF) solvent at 70^oC. A series of copolymersamples of NMI-MMAand NMI-ST were prepared using different feed ratios of comonomers. The polymer samples have been characterized by solubility tests, intrinsic viscosity measurements, FT-IR, and ¹H-NMR spectral analysis, and thermo-gravimetric analysis.The values of monomer reactivity ratios r₁ and r₂ determined by Fineman-Ross and Kelen-Tudos methods are 0.85 and 1.06 in NMI/MMA system and 0.80 and 0.15 in NMI/ST system, respectively. Alfrey-Price Q-e values for NMI or Q = 0.84 and e = 0.72 in NMI/MMA system and0.79 and 1.85in NMI/ST system, respectively. It was found that the initial and final decomposition temperatures increased with the increase content of NMI in the copolymer samples.

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Published

2015-09-30

How to Cite

Patel Mahesh H., & Oswal Shantilal B. (2015). Synthesis and Characterization of Homo and Copolymers of N-1-naphthylmaleimide with Methyl methacrylate and Styrene. International Journal of Research in Chemistry and Environment (IJRCE), 5(4), 26–37. Retrieved from http://www.ijrce.org/index.php/ijrce/article/view/331