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B. Polyolefin. Solution: Polyethylene terephthalate commonly abbreviated . One approach to improve polymer biodegradation in wastewater would be to complement current processes with polyester‐hydrolyzing enzymes and their microbial producers. One important class of condensation polymers are polyesters. Polyethylene terephthalate (PET) is mainly used for production of PET bottles, PET foil, and fibers in the textile industry. Answer: (D) Polyester. is a member of the polyester family of polymers. Polyester is a category of polymers that contain the ester functional group in their main chain. The chemical structure of polyethylene terephthalate (PET) consists of alternating ethylene glycolate and terephthalate subunits, linked via ester bonds. In the natural environment, PET can degrade by thermal oxidation, but hydrolytic cleavage Class 8 Science Chapter 3 Synthetic Fibres and Plastics MCQ (Multiple Choice Questions) with Answers is available here in PDF format. 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. 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. Polyester is a category of polymers that contain the ester functional group in their main chain. 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. C. Nylon. 2016). PET has various applications, such as in manufacturing bottles, fibers, films, and containers. polyethyleneterephthalate: n HO-X … Polyethylene terephthalate. ... Polyethylene terephthalate belongs to which class of synthetic polymer? None of these. 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. A. The final properties of the reinforced polymer are controlled in part by the morphology and the eventual molecular orientation of the polymer matrix. Polyethylene Terephthalate (PET). Polyesters include naturally occurring chemicals, such as in the cutin of plant cuticles, as well as synthetics such as polybutyrate. D. Polyester. PET or PETE . Polyethylene terephthalate belongs to which class of synthetic polymer? Examples include polyesters, e.g. Synthetic plastics are pivotal in our current lifestyle and therefore, its accumulation is a major concern for environment and human health. Polyethylene terephthalate (PET)-based blends are regraded as very special class of polymer blends; this is due to their multifunctional applications. Polyethylene Terephthalate and Other Polyesters. PET is a ... Polymers can be both natural and synthetic (c) Polymer is a natural substance (d) Polymer is a synthetic substance. It therefore belongs to the class of polymers known as polyesters. Synthetic polyesters are today the second‐largest class of ingredients in household products and are entering wastewater treatment plants (WWTPs) after product utilization. The PET monomer is designated bis(2-hydroxyethyl) terephthalate (BHET) (14). Polyester is a category of polymers, in which ester is the As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). 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