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What is ployster?????????? ​

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<STRONG>Answer:

Polyester is a category of polymers that contain the ESTER functional group in every repeat unit of their main chain. ... Polyester fibers are sometimes spun together with natural fibers to produce a CLOTH with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and REDUCE SHRINKING.



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