Asian Journal of Research in Chemistry

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Studies on Reactivity Ratio and Thermal Studies of Copolymers of N-Substituted Maleimide with Vinyl Pyridine [VP]/2-Hydroxy Ethylmethacrylate [OHEMA]


Affiliations
1 Department of Polymer Science, M.L. Sukhadia University, Udaipur (Rajasthan), India
2 Department of Chemistry, G.I.T.S., Udaipur (Rajasthan), India
     

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The copolymers (C-NACPMI) with various proportions of N-[4-N'-(4-nitrophenyl) aminocarbonyl] phenyl) maleimide [NACPMI] with Vinyl Pyridine [VP] and 2-hydroxy ethylmethacrylate (OHEMA) were prepared by free radical polymerization. The structure of synthesized copolymers was characterized by FT - IR and 1H-NMR spectroscopic methods. The nine copolymer samples were synthesized from different feed ratio of comonomers. The monomer reactivity ratio r NACPMI, r VP and r OHEMA are determined by Finemann Ross method. Copolymers showed solubility in polar solvent. Thermal behavior of copolymers was evaluated by TGA and DSC. The investigated copolymers degrade in one steps. The molecular weight was determined by GPC.

Keywords

Copolymerization, VP, Reactivity Ratio, TGA, GPC.
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  • Studies on Reactivity Ratio and Thermal Studies of Copolymers of N-Substituted Maleimide with Vinyl Pyridine [VP]/2-Hydroxy Ethylmethacrylate [OHEMA]

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Authors

Jyoti Chaudhary
Department of Polymer Science, M.L. Sukhadia University, Udaipur (Rajasthan), India
Swati Purohit
Department of Polymer Science, M.L. Sukhadia University, Udaipur (Rajasthan), India
Radha Chaudhary
Department of Chemistry, G.I.T.S., Udaipur (Rajasthan), India

Abstract


The copolymers (C-NACPMI) with various proportions of N-[4-N'-(4-nitrophenyl) aminocarbonyl] phenyl) maleimide [NACPMI] with Vinyl Pyridine [VP] and 2-hydroxy ethylmethacrylate (OHEMA) were prepared by free radical polymerization. The structure of synthesized copolymers was characterized by FT - IR and 1H-NMR spectroscopic methods. The nine copolymer samples were synthesized from different feed ratio of comonomers. The monomer reactivity ratio r NACPMI, r VP and r OHEMA are determined by Finemann Ross method. Copolymers showed solubility in polar solvent. Thermal behavior of copolymers was evaluated by TGA and DSC. The investigated copolymers degrade in one steps. The molecular weight was determined by GPC.

Keywords


Copolymerization, VP, Reactivity Ratio, TGA, GPC.