WebJan 1, 2024 · On the other hand, in material science and polymer engineering, the term is more specific and refers to a subclassification of polymeric materials based on the end-use (Callister and Rethwisch, 2011). ... On the other hand, branched polymers present side-branch chains covalently connected to the main ones, and, ... WebNoun. (organic chemistry) A long or larger molecule consisting of a chain or network of many repeating units, formed by chemically bonding together many identical or similar …
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WebOct 13, 2024 · Even the DNA in your cells is a polymer. By definition, polymers are large molecules made by bonding (chemically linking) a series of building blocks. The word polymer comes from the Greek words for “many parts.”. Each of those parts is scientists call a monomer (which in Greek means “one part”). WebPolymer fume fever usually occurs as a self-limited systemic illness with only minor pulmonary symptoms. Like metal fume fever, constitutional signs and symptoms typically present several hours after initial exposure, often giving rise to a misdiagnosis of viral "flu." Compared to metal fume fever, polymer fume fever has a more varied clinical ...
WebIn polymer science, degradation generally refers to a complex process by which a polymeric material exposed to the environment and workload loses its original properties ( Horie et al., 2004 ). Degradation is usually an unwanted process. In certain cases, however, controlled polymer degradation is useful. WebAll plastics are essentially polymers, but not all the polymers are plastics. The term polymer and monomer are derived from Greek words: where ‘poly’ means 'many', ‘mer’ means 'repeating unit' and the word ‘mono’ means 'one'. This literally means a polymer is made from many monomer-repeating units.
WebSynonyms for PLASTIC: waxy, moldable, malleable, adaptable, shapable, shapeable, flexible, bending; Antonyms of PLASTIC: rigid, stiff, inflexible, intractable ... WebThe four possible arrangements of the mers along the chain are (1) alternating, in which the mers repeat every other position; (2) random, in which the mers are in random order; (3) block, in which mers of each type group themselves into long segments along the chain; and (4) graft, in which mers of one type are attached as branches to a main backbone of mers …
WebApr 10, 2024 · I also work in multicomponent mass transfer in crosslinked polymer materials. Specialties: Mechanical, thermal, rheological, optical, and permeation properties of polymers. Polylactides and other ...
WebSep 8, 2024 · This polymer was used as a surgical dressing, starting with the U.S. Civil War and afterward. The vulcanization of rubber was another big achievement in polymer … fitness not syncing with apple watchWebAug 26, 2016 · Molded-in color is an advantage of polymer materials. Photo: Avient. When enumerating the advantages of using plastics over other materials such as metals, ceramics, and wood, one of the items that inevitably comes up is molded-in color. Even in industries like automotive that still rely on painting plastics, the long-term objective is to ... fitness now bocaWebJul 31, 2013 · A set of terms, definitions, and recommendations is provided for use in the classification of coordination polymers, networks, and metal–organic frameworks (MOFs). A hierarchical terminology is recommended in which the most general term is coordination polymer. Coordination networks are a subset of coordination polymers and MOFs a … can i buy ethereum on ameritradeWebAug 20, 2024 · Medical device development is often a long-term endeavor, requiring rigorous testing, quality control systems, and compliance to an ever-evolving set of regional and global regulatory requirements. ... In other cases, a non-medical grade polymer may have been used in a device for decades, ... fitness nut houseWebThe term “Polymer” has its origin in the Greek word “polus meros” which means many (polus) parts (meros). Accordingly, Polymers are materials produced by a repeated chain of molecules. Plastics, which are manufactured polymers, are frequently referred to as polymers. On the other hand, natural polymers exist; rubber and wood, for ... can i buy ethereum on metamaskWebSynonyms for polymer include biopolymer, macromolecule, resin, plastic, polystyrene, vinyl, polypropylene, polyethylene, acrylic and PVC. Find more similar words at ... can i buy etf in 401kWebSome authors use the term 'random' to denote the Bernoullian case further restricted by the condition that the monomeric units be present in exactly equal amounts [8]. ... In addition to alternating polymers, other structures are known in which the monomeric units appear in an ordered sequence. Examples are:-ABCABCABC- or (ABC) n-ABBABBABB- or ... fitness noumea