Maybe the definition confuses many of us, but it does not really matter.Polymers are appeared in our everyday’s life, in other words, we are surrounded by polymers,and nomatterit isnatural or synthetic. You may ask “where is the polymer?” In our daily life, polymers are called as ...
Man-made or synthetic polymers include materials such as polyethylene, the most common plastic in the world found in items ranging from shopping bags to storage containers, and polystyrene, the material used to make packing peanuts and disposable cups. Some synthetic polymers are pliable (thermoplasti...
Natural products have a long history of providing probes into protein biosynthesis, with many of these compounds serving as therapeutics. The marine natural product girolline has been described as an inhibitor of protein synthesis. Its precise mechanism of action, however, has remained unknown. The ...
The University of Science and Technology of China uses p-methoxybenzyl alcohol as raw material and polystyrene sulfonyl chloride as the carrier to prepare p-methoxybenzaldehyde through the Komblum reaction using a solid-phase method. The solid-phase method is used to prepare p-methoxybenzaldehyde, whi...
A: PLA's strength can be comparable to some traditional plastics like polystyrene, but it's generally less durable than other common filaments like ABS. Its mechanical properties can be enhanced through various techniques such as blending with other polymers or adding reinforcing fibers. Q: Is PLA...
Du Y, Zhao J, Teng J, Ren J, Shan E, Zhu X, Wang Q (2023) Combined effects of salinity and polystyrene microplastics exposure on the Pacific oysters Crassostrea gigas: oxidative stress and energy metabolism. Mar Pollut Bull 193:115153. https://doi.org/10.1016/j.marpolbul.2023.115153 Artic...
Today, a wide range of antibiotics are available, which work against different aspects of cellular biosynthesis. These can be designated as natural, semi-synthetic or synthetic (Additional file6), which aid in identifying whether humans are the potential drivers of resistance. Research investigating ...
Thermoplastic polymers specified are homo- and copolymers of vinyl aromatic compounds or copolymers with vinyl esters, esters of acrylonitrile, acrylic or methacrylic acid or with natural or synthetic rubbers, and also blends of a styrene polymer and a minor proportion of natural or synthetic rubber....
Natural polymers (Example: Starch, Cellulose, Portions, etc.) Synthetic polymers (Example: PVC, -Nylon Teflon, etc.) Semi-synthetic polymers (Example. - Rayon, Cellulose nitrate) What is number average molecular weight? The number average molecular weight (Mn) measuring system requirescounting the...
Low-Density Polyethylene (LDPE)Polypropylene(PP) Polystyrene or Styrofoam (PS) Miscellaneous plastics (includes: polycarbonate, polylactide, acrylic, acrylonitrile butadiene, styrene, fiberglass, and nylon) How are plastics made simple? Plastics are made fromnatural materials suchas cellulose, coal, natura...