MIKKEL JUUL JENSEN / SCIENCE PHOTO LIBRARY MIKKEL JUUL JENSEN / SCIENCE PHOTO LIBRARY
Branched and linear polyethylene. Computer illustration representing the structure of linear polyethylene (high-density polyethylene, HDPE, top) and branched polyethylene (low-density polyethylene, LDPE, bottom) molecules. Polyethylene, or polythene, is the most common form of plastic. It is primarily used in packaging such as plastic bags, bottles etc.
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