Synthesis, Characterization, and Thermal Degradation ofp-Chloroacetophenone Oxime Based Polymers HavingBiological Activities

Department of Polymer Science, University College of Science, Mohan Lal Sukhadia University, 313 001, Udaipur, Rajasthan, India; Department of Pure and Applied Chemistry, University of Kota, 324010, Kota, Rajasthan, India
Journal of Applied Polymer Science (Impact Factor: 1.4). 01/2011; DOI: 10.1002/app.33966
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    ABSTRACT: Radical copolymerization of 2, 4-dinitrophenylaminomaleimide (DNPAMI) with methyl/ethyl/ butyl substituted acrylates were prepared at 65 oC in tetrahydrofuran (THF) solution with azoisobutyronitrile (AIBN) as an initiator. The structures of copolymers were elucidated by FT-IR, 1H NMR and elemental analysis. The copolymer composition was determined from the N/C ratio based on elemental analysis data and with 1H NMR spectroscopy for copolymers using a proton signal attributed to the alkyl (methyl, ethyl or butyl) of substituted acrylates (δ = 0.7–1.4 ppm) and the area of aromatic ring protons (δ = 7.2–7.8 ppm), where the proton/area relationship confirmed the copolymer compositions. The number average molecular weight and polydispersity indices determined by gel-permeation chromatography were ranging from 27.6 to 31.1 kDa and 1.36 to 1.51, respectively. The initial decomposition temperature is about 203 to 211 oC. The thermal behavior can be correlated with the copolymer composition. An increase of the thermal decomposition temperature occurred when the content of acrylate increased. The reasonably good antibacterial and antifungal activities of the copolymers could be ideal candidates for amtimicrobial coating applications.
    malaysian polymer journal. 01/2013; 8(2):18-25.


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Jun 1, 2014