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Polymeric surfactants are surfactant molecules that have a polymeric backbone, which can be made up of various repeating units. These surfactants have both hydrophilic and hydrophobic segments, which allows them to interact with both water and oil. Polymeric surfactants are used in a variety of industrial applications, such as in the production of paints, adhesives, and coatings. They can improve the stability and performance of these products by reducing the surface tension and promoting the dispersion of pigments and fillers. In addition, polymeric surfactants are also used in the formulation of personal care products, such as shampoos, conditioners, and body washes. They can help to improve the texture and feel of these products, as well as enhance their cleaning and conditioning properties. One of the key advantages of polymeric surfactants is their ability to form stable micelles in solution. These micelles are aggregates of surfactant molecules that form a spherical structure with the hydrophobic segments on the inside and the hydrophilic segments on the outside. This allows for efficient emulsification of oil and water, which is important in a variety of industrial processes. Polymeric surfactants are a versatile class of surfactants that offer several unique properties and advantages in various applications. They are commonly used as emulsifiers, stabilizers, and thickening agents, and have potential applications in areas such as agriculture, oil and gas, and papermaking. Polymeric surfactants are a diverse class of surfactants that can be classified based on their composition, molecular weight, and degree of polymerization. They offer a range of unique properties and advantages in various applications, including cosmetics, food and beverage products, pharmaceuticals, and agriculture.
24 Mar 2023
Natural Polymeric Composites Derived from Animals
The special property of polymeric-based systems is that they serve as adjuvants, may trigger an antigen-mediated immune response, and also substantially deliver the antigen or vaccine to the desired anatomical or physiological location. Moreover, the benefit of polymeric-based delivery methods is that they may be made using natural polymers, which reduces the risk of tissue cytotoxicity.
23 Mar 2023
Effect of Nano-Additives on PLA/Nanocomposite Properties
Poly(lactic acid) (PLA) is considered the most promising biobased substitute for fossil-derived polymers due to its compostability, biocompatibility, renewability, and good thermomechanical properties. However, PLA suffers from several shortcomings, such as low heat distortion temperature, thermal resistance, and rate of crystallization, whereas some other specific properties, i.e., flame retardancy, anti-UV, antibacterial or barrier properties, antistatic to conductive electrical characteristics, etc., are required by different end-use sectors. The addition of different nanofillers represents an attractive way to develop and enhance the properties of neat PLA. Numerous nanofillers with different architectures and properties have been investigated, with satisfactory achievements, in the design of PLA nanocomposites.
21 Mar 2023
SAPO-34 Zeolite Membranes
In the zeolite family, the silicoaluminophosphate (SAPO)-34 zeolite has a unique chemical structure, distinctive pore size, adsorption characteristics, as well as chemical and thermal stability, has attracted much research attention. Increasing global carbon dioxide (CO2) emissions pose a serious environmental threat to humans, animals, plants, and the entire environment.
20 Mar 2023
Chitosan-Containing Composite Materials for Adsorption and Catalysis
Composite materials including organic–inorganic systems have drawn special attention due to their enhanced properties such as adsorbents and heterogeneous catalysts. At the same time, large-scale production of environmentally benign functionalized biopolymers, such as chitosan (CS), allows for constantly developing new materials, since CS reveals remarkable properties as a stabilizing agent for metal-containing compounds and enzymes and as an adsorbent of organic molecules.
15 Mar 2023
Surface Treatments of PEEK for Osseointegration to Bone
Polymers, in general, and Poly (Ether-Ether-Ketone) (PEEK) have emerged as potential alternatives to conventional osseous implant biomaterials. Due to its distinct advantages over metallic implants, PEEK has been gaining increasing attention as a prime candidate for orthopaedic and dental implants. Although a myriad of permutations and combinations of different surface treatments are employed to alter the surface topography of PEEK, for the sake of simplicity, these treatments have been classified into the following categories: physical treatment, chemical treatment, surface coating, and composite preparation, with the first surface treatment in the combination determining the classification. Though these terms are arbitrary and could lead to considerable overlap, physical and chemical treatments can be grouped into a subtractive form of surface modification while surface coating can be regarded as an additive form.
15 Mar 2023
Mahmoud A. Hussein
M.A. Hussein is a professor of Polymer Chemistry, Polymer Chemistry Lab, Chemistry Department, Faculty of Science, Assiut University (AU), Egypt. He obtained his PhD in Organic Polymer Synthesis from Assiut University, Egypt in 2007. He got a position at Chemistry Department, King Abdulaziz University (KAU), Jeddah, Saudi Arabia from 2010 – till now. He got a postdoctoral position in the Unive
13 Mar 2023
Degradation and Life Prediction of Polyethylene
Polyethylene is one of the most significant and useful polymers that has been extensively studied for use as a plastic material. The benefits of using polyethylene as a commercial plastic material include its excellent mechanical properties, good flexibility, good chemical resistance, lightweight properties, good thermal stability, and high-cost performance. The piping sector has been impacted by the trend of replacing steel with plastic during the past, resulting in the steady replacement of metal-based pipes with plastic pipes. Polyethylene pipes are the most commonly utilized among them. Consider the case of high-density polyethylene pipes. Its market worth was USD 15.975 billion in 2018, and 9.283 million tons were consumed each year. The service life of polyethylene pipes will not be less than 50 years, and it will continue to grow at a rate of at least 5% annually in the upcoming years.
10 Mar 2023
Natural Antibacterial Additives in Bioactive Wound Dressings
Wound care is a global health issue with a financial burden of up to US $96.8 billion annually in the USA alone. Chronic non-healing wounds which show delayed and incomplete healing are especially problematic. Natural products and their derivatives have long been a significant source of pharmaceuticals against AMR. Scrutinising the data of newly approved drugs has identified plants as one of the biggest and most important sources in the development of novel antibacterial drugs.
10 Mar 2023
The Principles of Atom Transfer Radical Polymerization
Atom transfer radical polymerization (ATRP) is a robust polymerization method that was developed and presented by Professor Matyjaszewski’s group in 1995. It was inspired by atom transfer radical addition, which was successfully used in the synthesis of low-molecular-weight compounds.
09 Mar 2023
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