Table of Content

Polymer and Nanomaterials

Submission Deadline: 31 August 2019 (closed)

Guest Editors

Niranjan Karak, Professor, Chemical Sciences Department, Tezpur University, India
Neelotpal Sen Sarma, Associate Professor, Physical Sciences Division, Institute of Advanced study in Science and Technology (IASST), India

Summary

The necessity for renewable resources-based polymers, nanomaterials and nanocomposites with high performance is inevitable and increasing steadily over the last three decades or so due to ever increasing world population and comfort in human life in one hand, and depletion of fossil fuel reserves, global warming and environmental rules and regulations on other hand. Thus the scientists and researchers have tried to exploit the naturally renewable resources as the feed stocks for the development of their desired products. In the current state-of-art, bio-based such products are growing tremendously because of their promising and advantageous attributes over their conventional non-renewable resource-based analogs. So, the editor intended for the original research and review articles in the field of polymers and nanomaterials as well as their combinations, obtained from renewable resources, in this special issue.


Keywords

Renewable resource, polymer, nanomaterial, nanocomposite, performance, characterization, application

Published Papers


  • Open Access

    ARTICLE

    Mycogenic Silver Nanoparticles From Endophytic Trichoderma atroviride with Antimicrobial Activity

    Ahmed Abdel-Azeem, Amr A. Nada, Anthonia O’Donovan, Vijay Kumar Thakur, Amr Elkelish
    Journal of Renewable Materials, Vol.8, No.2, pp. 171-185, 2020, DOI:10.32604/jrm.2020.08960
    (This article belongs to this Special Issue: Polymer and Nanomaterials)
    Abstract There is an increasing interest in developing nanoparticles with diverse biologic activities. To this end, we prepared 10 to 15 nm silver nanoparticles (AgNP) from native isolates of Trichoderma atroviride. Within this study, endophytic fungi hosted four medicinal plants in Saint Katherine Protectorate, South Sinai, Egypt have been isolated by surface sterilization technique on four isolation media. Ten species, based on their frequency of occurrence, out of twenty recovered taxa were tested for their capability to synthesize extracellular AgNPs. Trichoderma atroviride hosted Chiliadenus montanus was found to be the best candidate for the production of mycogenic AgNPs among all examined… More >

  • Open Access

    ARTICLE

    Orientation on the Mechanistics of Electron-Transfer on Oxidation of Chondroitin-4-Sulfate as Sustainable Sulfated Polysaccharide by Permanganate Ion in Aqueous Perchlorate Solutions

    Refat Hassan, Hideo Takagi, Samia Ibrahim
    Journal of Renewable Materials, Vol.8, No.2, pp. 205-218, 2020, DOI:10.32604/jrm.2020.08530
    (This article belongs to this Special Issue: Polymer and Nanomaterials)
    Abstract A spectrophotometric investigation of oxidation of chondroitin-4-sulfate (CS) as a sustainable and biodegradable sulfated macromolecule by oxyanion permanganate ion as multi-equivalent oxidant in acid perchlorate solutions at a constant ionic strength of 2.0 mol dm-3 has been studied. The experimental results on the influence of the concentration of the reactants the reaction rates revealed first-order dependence in MnO4 , fractional second-order in [CS] and fractional first-order with respect to the hydrogen ion concentration. The hydrogen acid concentration dependence of the rate constants indicated that the oxidation rates were increased with increasing the acid concentration which means that the oxidation reaction… More >

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