Transcription of POLYMERS - chymist.com
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POLYMERS - chymist.com
POLYMERS 1998, 1981, by David A. Katz. All rights reserved. David A. Katz Chemist, Educator, Science Communicator, and Consultant 1621 Briar Hill Road, Gladwyne, PA 19035, USA Voice/Fax: 610-642-5231 Email: Introduction Natural POLYMERS (from the Greek poly meaning many and meros meaning parts ) are found in many forms such as horns of animals, tortoise shell, shellac (from the lac beetle), rosin (from pine trees), asphalt, and tar from distillation of organic materials. One of the most useful of the natural POLYMERS was rubber, obtained from the sap of the hevea tree. (Rubber was named by the chemist Joseph Priestley who found that a piece of solidified latex gum was good for rubbing out pencil marks on paper.)
Recycling code Polymer and structure Uses Poly(ethylene terephthlate) (PET) Bottles for soft drinks and other beverages High-density polyethylene
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