We can design the properties of polymers by choosing different monomers and by changing the condition used to make them.
Polymers are widely used for food packaging to keep food in good condition. Some of these polymers are not biodergradable and cause problems with waste disposal.
The polymers used for drinks bottles are strong, flexible, lightweight, clear and non-porous.
Polymers have been developed to coat fabrics that make them waterproff but able to let gases though (breathable). New polmers have been developed for medical use, including hydrogels which are also used in agriculture and food. Smart polymers can be used to control the release of drugs and shape meomory polymers are used for stitching wounds.
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