Rajesh Pandit

Tribhuvan University Tri-Chandra Multiple Campus Kathmandu Nepal · Department of Chemistry

In recent years, considerable attention is given in various nanomaterials development using biodegradable wastes for establishing more eco-friendly technologies. Due to the biocompatible, biodegradable, and non-toxic nature hydroxyapatite (HAp) and chitosan (CS) are highly studied in recent times. In this research work, HAp and CS were synthesized...

Urea Formaldehyde (UF) resins have good chemical resistivity and high thermal stability, making them an excellent choice in the construction industry. They, however, pulverize quickly and have low strength and toughness. In this work, magnesium oxide (MgO) nanoparticles were added to UF as nanofillers to influence its compressive strength. MgO nano...

Environmental, economic, and waste management concerns are growing as a result of the proliferation of plastics in the environment. As a potential solution to the problem of plastic pollution, glycerol plasticized starch-based bioplastics were investigated for their biodegradability. There are numerous uses of starch, a biopolymer derived from orga...

Green synthesis of nanoparticles (NPs) using plant extract is an eco-friendly and economical method widely used in materials science. In this work, the synthesis of zirconia (Zirconium dioxide) NPs was carried out using the Citrus Sinensis peels extract. The synthesized NPs were characterized by X-ray diffraction (XRD) and Fourier Transform Infrare...

The effect of silica nanoparticles used as a nanoporous additive in cement was studied with various wt-% ratios. Saccharum officinarum bagasse, an agricultural waste residue was used to synthesize silica nanoparticles as it contains a high amount of silica. The synthesized silica nanoparticles were characterized through XRD and FTIR spectroscopic a...

Plasticizers are the binding substances used to increase the elasticity of materials. In this research work, bioplastic is extracted from banana peels using various plasticizers such as, glycerol, urea, distilled water and glucose. The prepared bioplastics were characterized by using Fourier-transform infrared spectroscopy (FTIR) spectroscopic anal...

Zirconia (ZrO2) nanoparticles are polymorphic materials having a wide range of applications. It can be synthesized via green as well as chemical synthesis methods. In this work, ZrO2 nanoparticles were synthesized by the green method using Curcuma longa extract. Curcuma longa extract was prepared using the standard method. The synthesized ZrO2 was...

Star-shaped polystyrene-block-polybutadiene-block-polystyrene (SBS) block copolymer (BCP) was subjected to epoxidation reaction using m-chloroperoxy benzoic acid (MCPBA). The epoxidized SBS block copolymer (eSBS) was then blended with diglycidyl ether of bisphenol-A based epoxy resin (EP) and cross-linked with methylene dianiline (MDA). The materia...

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Styrenic block copolymers based on polystyrene (PS) and poplybutadiene (PB) having various molecular architectures were subjected to epoxidation reaction to different degrees by various methods using m-chloroperoxy benzoic acid (MCPBA), performic acid (PFA), peracetic acid (PAA), and hexafluoro isopropanol (HFIP). The epoxidized copolymers were ble...

A star shaped polystyrene-block-polybutadiene-block-polystyrene (SBS) block copolymer was subjected to epoxidation reaction using different reagents such as m-chloroperoxy benzoic acid (MCPBA), peracetic acid (PAA), performic acid (PFA) and hexaflouro-isopropanol (HFIP). All the methods led to the targeted modification of the block copolymer satisf...

An architecturally asymmetric polystyrene-block-polybutadiene-block-polystyrene (SBS) triblock copolymer possessing lamellar morphology was subjected to different degrees of epoxidation with performic acid generated in situ by the reaction between hydrogen peroxide and formic acid. The effect of the chemical modification on morphology and mechanica...

In this work, the polybutadiene (PB) block of an asymmetric lamellae forming polystyrene/polybutadiene based triblock copolymer was epoxidized to different extent in order to study its effect on morphology and mechanical behaviour of the copolymer. The products were analyzed by means of different microscopic techniques, Fourier transform infrared (...

Polystyrene–polybutadiene block copolymers having different molecular architectures were epoxidized by using meta-chloroperoxybenzoic acid (MCPBA). Then, the blends with epoxy resin (diglycidyl ether of bisphenol-A; DGEBA) and their nanocomposites with boehmite and layered silicate nanofiller in presence of methylene dianiline (MDA) as a hardener w...