Microfiber is 100 percent polyester. A polymer can also be inorganic , in which case there may be atoms such as silicon in the place of carbon atoms. For example, a repeating unit in the chemical structure of natural rubber is isoprene. polymer is a large molecule composed of many repeated units. dna is a polymer , which means that is made up of many repeating single units . ... made up of small repeating units. Polyester makes up about 18% of world polymer production and is the fourth-most-produced polymer after polyethylene (PE), polypropylene (PP) and polyvinyl chloride (PVC). Polymers are made up of various molecules join together to form long chains or in other words polymer is a useful chemical made up of repeating units. Polyester is made of repeating units of a chemical called ‘ester’. Let us see what polyesters are made of. Synthetic polymers are those which are human-made polymers. Polymers are used in agriculture, industry, medicine, sports equipments etc. Polyester fibres are strong, resistant to stretching and shrinking. Polyester doesn’t wrinkle much, and it dries quickly. Polymers are those which consists of repeated structural units known as monomers. PET consists of polymerized units of the monomer ethylene terephthalate, with repeating (C 10 H 8 O 4) units. Solution: Polyester (Poly+ester) is a category of polymers, made up of the repeating units of a type of chemicals called ester. Polymers, whether natural or artificial, are big molecules made by linking up smaller repeating chemical units. Polyethylene is considered to be as one of the simplest polymer, it has ethene or ethylene as the monomer unit whereas the linear polymer is known as the high density polyethylene-HDPE. Polyester is a kind of plastic made from petroleum. Each repeating unit is known as “-mer” or basic unit with “poly-mer” meaning many repeating units. The most common “backbones” for polymers are chains of carbon or silicon, each of which can bond to four other atoms. what are the monomers called? The word ‘polymer’ consists of the words ‘poly’ which means many and ‘mer’ stands for part or unit. A polymer is made up of repeated subunits. Naturally occurring and synthetic polymers can be formed from a variety of monomers. Polyester, a class of synthetic polymers built up from multiple chemical repeating units linked together by ester (CO-O) groups. What is a polyester composed of? In an organic polymer , the monomers are joined by the carbon atoms of the polymer backbone or chain . In the image below, you can see repeating units of isoprene after isoprene is turned into a natural rubber. The simplest definition of a polymer is a useful chemical made of many repeating units. What makes these networks unique is the fact each polymer creates a network of repeating units. 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