Solution: Polyethylene terephthalate commonly abbreviated . PET is a polar, linear polymer of repeating units of the aromatic terephthalic acid and ethylene glycol. Class 8 Science Chapter 3 Synthetic Fibres and Plastics MCQ (Multiple Choice Questions) with Answers is available here in PDF format. None of these. polyethyleneterephthalate: n HO-X … As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). [4] They arise from the reaction of carboxylic acid and an alcohol. In the present study, multiwall carbon nanotubes (MWCNTs) were utilized in order to reinforce polyethylene terephthalate (PET) composites. PET or PETE . C. Nylon. One important class of condensation polymers are polyesters. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Petroleum-derived (petro-)polymers such as polyethylene (PE), polyethylene terephthalate (PET), polyurethane (PU), polystyrene (PS), polypropylene (PP), and polyvinyl chloride (PVC) are extremely recalcitrant to natural biodegradation pathways. Polyester is a category of polymers, in which ester is the One approach to improve polymer biodegradation in wastewater would be to complement current processes with polyester‐hydrolyzing enzymes and their microbial producers. In the natural environment, PET can degrade by thermal oxidation, but hydrolytic cleavage Answer: (D) Polyester. Synthetic polyesters are today the second‐largest class of ingredients in household products and are entering wastewater treatment plants (WWTPs) after product utilization. ... Polyethylene terephthalate belongs to which class of synthetic polymer? Polyethylene terephthalate (PET) is mainly used for production of PET bottles, PET foil, and fibers in the textile industry. It therefore belongs to the class of polymers known as polyesters. B. Polyolefin. Polyethylene terephthalate. Polyester is a category of polymers that contain the ester functional group in their main chain. Polyester is a category of polymers that contain the ester functional group in their main chain. The PET monomer is designated bis(2-hydroxyethyl) terephthalate (BHET) (14). 2016). Examples include polyesters, e.g. PET is a Polyethylene terephthalate (PET) is one of the major plastics, in addition to polyethylene, polypropylene, polystyrene, polyvinyl chloride, and polyurethane, and its worldwide production amounted to 56 million tons in 2013 (Neufeld et al. Among these thermoplastic polymers, polyethylene terephthalate (PET) is a very important engineering thermoplastic polyester because of its excellent chemical resistance, good mechanical and thermal properties, as well as excellent optical and barrier properties, which make PET an ideal candidate for use as beverage bottle applications, that are increasingly, replacing glass bottles. Polyethylene terephthalate (PET)-based blends are regraded as very special class of polymer blends; this is due to their multifunctional applications. PET has various applications, such as in manufacturing bottles, fibers, films, and containers. Polyethylene Terephthalate (PET). is a member of the polyester family of polymers. D. Polyester. Synthetic plastics are pivotal in our current lifestyle and therefore, its accumulation is a major concern for environment and human health. A. ... Polymers can be both natural and synthetic (c) Polymer is a natural substance (d) Polymer is a synthetic substance. 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