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91 articles for “polymerization”
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Investigation on Catalyst Selection for Polymerization Processes in Petrochemical Industries
Abstract: Organic polymers are long-chain compounds made of several repeating units. These polymers are either natural, such as protein, cellulose, starch or synthetic, such as polyethylene (a plastic), polyesters and polyamides (plastics and fibers) and polybutadiene (rubber).Many organic compounds possessing multiple bonds have the tendency to polymerize in the presence of an initiator. Polymerization of these compounds can either be affected by the use of chemical initiators such as free radicals …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 2, 2020 · pp. 12–16 Read article
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Polymer-Based Composites in Orthopedic Applications: A Study
Abstract: The pursuit of ideal biomaterials in the field of orthopaedics is an ongoing process that is drivenby the requirement for improved biocompatibility, mechanical congruence with natural tissues,and long-term stability in vivo. Polymer-based composites, also known as PBCs, have emergedas highly attractive options. These composites offer a one-of-a-kind combination of features thatcan be customised, which addresses many of the constraints that are associated with standardceramic and metallic implants. The purpose of …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 2, 2025 Read article
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Synthesis of Bio-Polymeric Network and Developing UV-Visible Spectrophotometric Method for Heavy Metal Ions Removal from Polluted Water by Apple Residues
Abstract: Biosorption is potentially an attractive technology for removing heavy metals from wastewater and discharging heavy metals into an aquatic ecosystem has become a matter of concern all over the globe since the last century. Pollutants from various industrial operations disturb the aquatic systems and heavy metals present in them cause serious human diseases. Previously established methods, such as chemical precipitation, ion exchange, membrane separation, and adsorption are generally costly due …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 11, Issue 1, 2025 · pp. 1–9 Read article
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Advances in Copolymer Synthesis and Their Industrial Applications
Abstract: Copolymers, composed of two or more distinct monomers, have seen tremendous growth due to their adaptability in creating materials with enhanced properties for diverse applications. Recent advances in synthesis techniques, such as controlled radical polymerization (CRP), ring-opening polymerization (ROP), and living polymerization have enabled precise control over copolymer architectures, offering tailored properties, such as improved thermal stability, flexibility, and biodegradability. These advancements have had a transformative impact across various industrial …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 10, Issue 2, 2024 · pp. 51–56 Read article
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Development of Mathematical Model for the Catalytic Polymerization of Propylene Process
Abstract: Mathematical model was developed to monitor, predict and simulate the catalytic polymerization of polypropylene process in a continuous stirred Tank Reactor, (CSTR). The developed model was based on consideration of functional parameters that influence the catalytic polymerization of propylene process production. These functional parameters are hydrodynamic factors, which induce process coverage into Aspen polymers to demonstrate the reliability of mass and heat transfer phenomena experienced during catalytic polymerization of propylene …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 2, 2018 · pp. 29–36 Read article
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A Review on the Properties of Polymeric Micelles
Abstract: Lately, polymeric micelles have pulled in a considerable measure of consideration as far as their particular conveyance of hydrophobic payload to the objective site. Polymeric micelles are viewed as more steady than their surfactant partners and can drag out flow times in vivo and their particular gathering in the tumoral tissues. They can viably solubilize little hydrophobic medications in their internal most hydrophobic center while their external hydrophilic shell can …
Published in International Journal of Polymer Science and Engineering · Vol. 3, Issue 1, 2017 · pp. 22–25 Read article
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A Detailed Lumped Model for Vinyl Acetate Emulsion Polymerization
Abstract: Abstract A mathematical model was developed to simulate emulsion polymerization of vinyl acetate monomer in isothermal, batch and semi-batch reactors. The recipe components included monomer (vinyl acetate), initiator (potassium persulfate), surfactant (sodium dodecyl sulfate) and water as the dispersion medium. The two important phenomena, particle nucleation and particle growth, were modeled in adequate detail. The mechanistic details included: particle formation via micellar nucleation; coupling of the radical concentration in the …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 1–12 Read article
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Low temperature plasma treatment of polymeric membranes: a comparative review
Abstract: This paper presents a comparative study of plasma surface modification of various polymeric membranes. Low temperature plasma treatment using pulsed direct current discharge of different gases was employed to enhance hydrophilicity of membranes. Radio frequency discharge of various gases was used to improve surface properties of different polymeric membranes. The enhancement of hydrophilicity of the plasma modified membrane surface was evaluated by measuring the contact angle. The membranes were characterized …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 1, 2020 · pp. 1–19 Read article
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Chemical Synthesis Strategies and Reaction Mechanisms in Self-Healing Polymeric Materials: A Comprehensive Review
Abstract: Self-healing polymeric materials are one of the most rapidly growing and technologically transformative classes of smart polymeric materials. Such materials offer the ability to autonomously repair damage and retain & restore functional performance. This capability is very important for polymers, which undergo mechanical failure, micro- cracking, delamination, photo-oxidation, or thermal degradation during service environments. The last decade has been remarkable for developments in self-healing polymers, ranging from extrinsic capsule-based approaches …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 1, 2026 · pp. 26–34 Read article
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Polymer-Based Composites in Orthopedic Applications: A Study
Abstract: The pursuit of ideal biomaterials in the field of orthopaedics is an ongoing process that is drivenby the requirement for improved biocompatibility, mechanical congruence with natural tissues,and long-term stability in vivo. Polymer-based composites, also known as PBCs, have emergedas highly attractive options. These composites offer a one-of-a-kind combination of features thatcan be customised, which addresses many of the constraints that are associated with standardceramic and metallic implants. The purpose of …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 2, 2025 Read article
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A Model to Study the Effect of Homogeneous Nucleation and Emulsifier Amounts on Methyl Methacrylate Emulsion Polymerization in a Seeded Semi-batch Reactor
Abstract: ABSTRACTAn extensive model is developed for methyl methacrylate emulsion polymerization. The assumption of monodispersed particle size distribution is used in developing the model. It is found that inclusion of homogeneous nucleation in the model leads to under prediction of variation of conversion with time. The effects of three different emulsifier amounts on the variation of conversion with time at 50°C isothermal reactor operation, keeping all the other ingredients constant are …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 9–17 Read article
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Synthesis and Characterization of Polymer-Based Organic–Inorganic Hybrid Materials viaSol–Gel Processing: A Review of Gelatin–Silica, Gelatin–Silica–Titania and HPMA-Based Systems
Abstract: Organic–inorganic hybrid materials have emerged as a versatile class of advanced materials that integrate the flexibility and functionality of organic polymers with the thermal, mechanical, and chemical stability of inorganic networks. Among the available fabrication routes, the sol–gel process has gained considerable attention because of its simplicity, low processing temperature, compositional flexibility, and ability to tailor material properties at the molecular level. The present review discusses the synthesis and characterization …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 2, 2026 Read article
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Advancement of Poly-(ADP – Ribose) Polymerase (PARP) Inhibitors in Cancer Progression and Treatment
Abstract: DNA repair mechanisms are the most common and potential targets in cancer treatment. PARP enzymes play a crucial role in detection of DNA damage and its repair and also in apoptosis. Detailed knowledge of these mechanisms leads to the development of poly-(ADP-Ribose) polymerase (PARP) inhibitors as vigorous anticancer drugs with specific action. PARP inhibitors can selectivity kill tumours with deficiencies in DNA repair proteins like BRCA1/2, exploiting synthetic lethality concept. …
Published in International Journal of Animal Biotechnology and Applications · Vol. 1, Issue 1, 2015 Read article
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Polymeric and Modified Nanofibers and Its Application
Abstract: Polymeric nano-fiber based materials and their application is one of the research areas in materials science and nanotechnology. Nano-fibrous materials are receiving extensive research interest for applications in diverse fields as biosensors, optical and chemical sensors, stimuli-responsive or "smart" materials, bioreactors, drug delivery carriers, antibacterial materials, tissue engineering scaffolds, clean energy, electronic and semiconductive materials, reinforced nano-composites, affinity membranes, etc. This is because of their important and interesting characteristics such …
Published in International Journal of Applied Nanotechnology · Vol. 2, Issue 2, 2016 · pp. 11–17 Read article
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SEPARATION OF CO2/CH4 USING POLYMERIC MEMBRANES - REVIEW
Abstract: Separation of CO /CH mixture is widely done efficient separation of mixture into desired components unit processes and unit operation had 2 4 been developed with passage of time. Sometimes using conventional technologies. CO2 when carried along with CH4 can cause additional cost of pumping. Most commonly used technique like cryogenic separation, adsorption and absorption are used for decades for separation of CO2 form CH4.Membrane has been developing technology for …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 13–29 Read article
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Polymer-based Nanocomposite Material for Packaging Highly Perishable Dairy Foods: A Review
Abstract: The dairy industry plays a crucial role in global diets, with India as the leading milk producer and dairy exporter. The Indian dairy market is expected to grow significantly by 2030, underscoring the need to maintain high standards of food quality and safety. Dairy products like milk, cheese, and butter are prone to deterioration due to their complex composition and exposure to environmental factors, which require efficient packaging solutions. Effective …
Published in International Journal of Composite and Constituent Materials · Vol. 10, Issue 1, 2024 · pp. 40–45 Read article
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Experimental Demonstration on the Recording of Capillary-Filled Microfluidic Devices Fabricated by Polymeric Material
Abstract: In this present experimental work, total 52 individual PMMA microfluidic devices are fabricated by maskless lithography, hot embossing lithography and direct bonding technique in a cleanroom laboratory. The selected working liquids are dyed water, dyed aqueous ethanol and dyed aqueous isopropyl alcohol and are prepared in a materials-science laboratory. Fabricated microfluidic devices are tested by the prepared aqueous working liquids, and each capillary-filled device after the surface-driven microfluidic flow is …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 31–41 Read article
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Toxicity Evaluation for accumulation of nanoparticles in biological system
Abstract: Recent years have seen an unprecedented growth in the field of nanotechnology. The application of nanotechnology has risen and now has become a technical necessity in almost every technical field be it medical, therapeutic, cosmetics, agriculture, forensic, defence and many more still to come. Nanotechnology in pharmaceutical application typically involves encapsulation of any drug in “Nano” sized carrier ranging from metallic, polymeric, quantum dots, silicon based, polymeric micelles, liposomes and …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 2, 2017 · pp. 1–7 Read article
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Mesh to Shrink in Nano Fabricated Compose
Abstract: This article is study about shrink of polymer originated composes. Aim has been inclusive from nano- based fillers on hybridized consequence from polymeric effects. Otherwise, descriptive issues have ever arose to link accession to repair dental simulated perversions. Nanotechnology in material formulation has been production of functional structures in range of 0.1 to 100 nm. Advantages of these composites have inherent shrinkage of cure mode in accordance to monomers said …
Published in International Journal of Applied Nanotechnology · Vol. 7, Issue 2, 2021 · pp. 1–12 Read article
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Reactor-Made Polypropylene for 3D Printing: A Low-Crystallinity Approach
Abstract: 3D printing is technology that enables the complex structure, which is difficult in conventional technique. However, relatively slow manufacturing process and using of limited polymeric material leads to attention of scientist towards newer cost-effective material and technology. In this study, we overcome this issue by synthesizing reactor-made polypropylene (mPP) using Dimethylsilylene-(cyclopentadienyl) (fluorenyl)-zirconium-dichloride metallocene catalyst. The polymerization process was systematically optimized by varying Al/Zr molar ratios, catalyst concentrations, and temperatures to …
Published in International Journal of Polymer Science and Engineering · Vol. 11, Issue 2, 2025 · pp. 1–17 Read article