A5055180307- Epoxy Resin Curing Processes
- Synthesis and properties of polymers
- Liquid Crystal Research Advancements
- Lignin and Wood Chemistry
- Advanced Battery Materials and Technologies
- Injection Molding Process and Properties
- Phenothiazines and Benzothiazines Synthesis and Activities
- Polymer composites and self-healing
- Synthesis and Characterization of Heterocyclic Compounds
- Advancements in Battery Materials
- Lanthanide and Transition Metal Complexes
- Advanced Battery Technologies Research
- Magnetism in coordination complexes
- Graphene and Nanomaterials Applications
- Recycled Aggregate Concrete Performance
- Innovations in Concrete and Construction Materials
- Nanoplatforms for cancer theranostics
- Aerodynamics and Fluid Dynamics Research
- Polymer Nanocomposites and Properties
- Synthesis of Organic Compounds
- Refrigeration and Air Conditioning Technologies
- Crystallization and Solubility Studies
- Nanoparticles: synthesis and applications
- Wind and Air Flow Studies
- Medicinal Plant Studies
Indian Institute of Science Bangalore
2020-2024
Kalinga University
2023
Shiv Nadar University
2014-2019
Phenolic compounds sourced from agro-based feedstock, viz. cashew nut shell liquid, lignin, tannin, palm oil, and coconut tar, have come up as sustainable alternatives to petro-based feedstock. This review explores their utility green polymer feedstock with citation of ~ 600 references.
High-energy electrochemical storage containing earth abundant materials could be a choice for future battery development. Recent research reports indicated the possibility of room-temperature sodium-ion–sulfur chemistry large including smart grids. Here, we report sodium–sulfur cathode that will address native downsides battery, such as polysulfide shuttling and low electrical conductivity elemental sulfur. In this Letter, use sustainable route which ensures sulfur confinement (i.e., ∼90 wt...
Graphene oxide (GO) is a promising and remarkable nanomaterial that exhibits antimicrobial activity due to its specific surface–interface interactions. In the present work, for first time, we have reported antibacterial of GO-coated surfaces prepared by two different methods (Hummers' improved, i.e., GOH GOI) against bacterial biofilm formation. The toxicity deposited was investigated both Gram-negative (Escherichia coli) Gram-positive (Staphylococcus aureus) models bacteria. mechanism...
Cardanol, an agrowaste – solventless synthesis and processability of benzoxazine monomers. Tailoring the polymer properties as a function oxazine functionality in
Abstract A sulfur-rich copolymer, poly(S-r-C-a) has been synthesized via a sustainable route, showing the utility of two major industrial wastes- elemental sulfur (petroleum waste) and cardanol (agro waste), to explore its potential as cathode material for Li-S batteries. The copolymer exhibited reduction in active dissolution into electrolyte low self-discharge rate behavior during rest time compared an cathode, indicating chemical confinement units. presence organosulfur moieties suppress...
Isomerization of double bonds from an allylic to propenyl position is generally mediated by expensive metal catalysts, demanding additional synthetic step, thereby reducing sustainability the reaction. However, such functionalities are inherent in naturally occurring compounds, enabling a versatile protocol for their industrial utility. Herein, we report synthesis benzoxazine monomers based on biosourced isomeric phenols, eugenol (E) and isoeugenol (IE), biobased amine, furfurylamine (fa)...
For various technological applications involving the design of molecular- and nanoscale devices, spin crossover (SCO) materials are a way forward owing to an ability have readout in form distinct changes physical properties accompanying stimuli-responsive spin-state modifications. In particular, iron-based molecular SCO systems great interest as they shown vast potential functional including sensors electrical, optical, mechanical, spintronic, memory storage, processing devices. Due inherent...
Abstract A sulfur‐rich copolymer is synthesized via a sustainable, eco‐friendly approach using two major wastes namely, elemental sulfur (industrial waste) and cardanol (agro its application as cathode active material in Li−S battery. The presence of chemically bound (90 wt%) utilising (10 derivative the (S90) showed reduction dissolution into electrolyte. In addition, organic units get dispersed insoluble/insulating Li 2 S /Li phase thus found to suppress their irreversible deposition....
Biobased phenols and amines are attractive feedstock in rapid emerging polybenzoxazine thermosets. Renewable benzoxazines mainly monofunctional due to structure limitation of raw materials, especially amines. Here, we report fully naturally sourced bifunctional by a simple one-step solventless microwave synthesis using cardanol/guaiacol- carbohydrate-based isomannide diamine (ima). Chirality ima led complicated 1H NMR spectra monomers. Heteronuclear single-quantum coherence (HSQC)...
A series of benzoxazine monomers with varied functionality from 1 to 3 (mono, bis, and tris) is prepared by reacting agrowaste-derived cardanol higher amines. The ring opening polymerization study cardanol-based investigated three modes, namely, solution (nuclear magnetic resonance gel permeation chromatography), bulk (differential scanning calorimetry), theoretical (B3LYP 6–31+G**) calculations analyze the role number in curing behavior monomers. It found that presence close vicinity...
Alumina nanoparticles were incorporated in blends of benzoxazine monomers synthesized from bio- and petrobased phenols, cardanol bisphenol A, respectively, by way a one-pot solventless methodology. The structures the characterized proton ( 1 H) nuclear magnetic resonance Fourier transform infrared spectroscopy. Thermal characterization was performed using differential scanning calorimetry thermogravimetry. size bare alumina those polymer nanocomposite analyzed powder X-ray diffraction....
Abstract Analysing infection and mortality data for COVID-19 as a function of days 54 countries across all continents, we show that there is simple scaling behaviour connecting these two quantities any given nation when the segmented over few ranges dates covering most rapid spread pandemic recovery, wherever achieved. This described by parameters, one representing shift along time axis other normalisation factor, providing reliable definition rate each country in period. The number segments...
Front Cover: A higher oxazine functionalization in the benzoxazine monomer is used as an effective strategy towards faster polymerisation rate. Benzoxazines derived from agro waste cardanol are templates for studying curing kinetics using 1H-NMR, GPC, FT-IR and DSC techniques. Experimental findings concurred with theoretical (B3LYP 6-31+G**) calculations. Further details can be found article by Swapnil Shukla, Manorama Tripathi, Arup Mahata, Biswarup Pathak, Bimlesh Lochab* on page 1342.
Abstract Review: extraction of natural phenolic compounds and their utilization as green polymer feedstock; 619 refs.
Using plant extracts for the green synthesis of silver nanoparticles (AgNPs) is being recognized as a promising and environmentally sustainable approach. Plant in producing AgNPs obviate cell culture maintenance allow scalability non-aseptic setting. This work aims to identify categories phytochemicals conduct biosynthesis characterization utilizing from leaves stems Clinacanthus nutans. The present involved using aqueous derived (L) (S) C. approach was chosen due its non-toxic nature,...