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many of these materials have the property of plasticity—that is, they can be shaped in different forms, including various boards, films, and fibers. given their adaptability, general uniformity of composition, and lightweight, plastics are being used for numerous products, including those used in homes
trees, was in widespread use. eventually, inventors learned to improve the properties of natural polymers. natural rubber was sensitive to temperature, becoming sticky and smelly in hot weather and brittle in cold weather. in , two inventors—friedrich ludersdorf of germany and nathaniel hayward of the...
https://www.newworldencyclopedia.org/entry/Plastic