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NanoZnO initiated polymerization of N-vinylcarbazole (NVC) and evaluation of a poly(N-vinylcarbazole)–ZnO nanocomposite

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Abstract

The polymerization of N-vinylcarbazole was conducted in bulk in presence of ZnO without any external initiator and a nanocomposite of poly(N-vinylcarbazole)–ZnO (PNVC–ZnO) was isolated from the system. The polymerization of N-vinylcarbazole by ZnO impregnated with acetylene black (AB) and Fe3+ was also conducted to isolate the respective AB and Fe3+ loaded PNVC–ZnO composites, PNVC–ZnO(AB) and PNVC–ZnO(Fe3+). The formation of the poly(N-vinylcarbazole) in these systems was confirmed by FTIR, UV–vis and emission spectroscopic analysis. TGA, DSC and SEM characteristics of these composites were evaluated in details. XRD analysis revealed no crystanillity in poly(N-vinylcarbazole) moiety. PNVC–ZnO was nonconducting but PNVC–ZnO(AB) and PNVC–ZnO(Fe3+) systems exhibited conductivities in the range 0.12 and 10−3 S/cm respectively. A carbocationic propagation pathway was suggested to explain the initiation of N-vinylcarbazole by Zn++ moiety in ZnO. Kinetic studies revealed that the polymerization is first order with respect to ZnO and the monomer concentration respectively.

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Acknowledgement

The authors gratefully acknowledge the financial grant from DST, Government of India in the form of a project No: SR/S5/NM-14/2003. Thanks are also due to authorities of Presidency College for facilities. Thanks are also due to Dr. Madhusudan Roy, Saha Institute of Nuclear Physics, Kolkata for the help with the thermal stability references.

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  1. Department of Chemistry, Presidency College, Kolkata, 700073, India

    Debanjana Ghosh & Mukul Biswas

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  1. Debanjana Ghosh
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  2. Mukul Biswas
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Correspondence to Mukul Biswas.

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Ghosh, D., Biswas, M. NanoZnO initiated polymerization of N-vinylcarbazole (NVC) and evaluation of a poly(N-vinylcarbazole)–ZnO nanocomposite. J Polym Res 16, 245–254 (2009). https://doi.org/10.1007/s10965-008-9223-1

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