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Polyacrylonitrile (PAN) is a synthetic, semicrystalline organic polymer resin, with the linear formula (CH 2 CHCN) n. [2] Almost all PAN resins are copolymers with acrylonitrile as the main monomer .
Over the past century, technology to create a huge variety of malleable polymers (chains of large, repeating molecules) has evolved into the umbrella term plastics, which are often derived from ...
Popcorn Lung is a debilitating and irreversible respiratory disease which causes "scarring in tiny air sacs in the lungs that lead to excessive coughing and shortness of breath" similar to that ...
Foam peanuts (made of expanded polystyrene) The inner structure of a foam peanut, magnified 390× on an SEM. Foam peanuts, also known as foam popcorn, packing peanuts, or packing noodles, are a common loose-fill packaging and cushioning material used to prevent damage to fragile objects during shipping.
Polymer morphology is a microscale property that is largely dictated by the amorphous or crystalline portions of the polymer chains and their influence on each other. Microscopy techniques are especially useful in determining these microscale properties, as the domains created by the polymer morphology are large enough to be viewed using modern ...
Polymer science or macromolecular science is a subfield of materials science concerned with polymers, primarily synthetic polymers such as plastics and elastomers. The field of polymer science includes researchers in multiple disciplines including chemistry , physics , and engineering .
In polymer chemistry, polymerisation inhibitors (US: polymerization inhibitors) are chemical compounds added to monomers to prevent their self-polymerisation. Unsaturated monomers such as acrylates, vinyl chloride, butadiene and styrene require inhibitors for both processing and safe transport and storage.
Science & Tech. Sports. Weather. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. ... Movie theater popcorn butter isn’t actually butter, but a ...