How Plastic Works
In 2026 researchers in Germany described a bacterial enzyme that can break down a kind of polyester bioplastic. This film explains what plastic actually is: how small molecules link into chains thousands of units long, how Bakelite and polyethylene were invented, why some plastics melt and others never do, what the numbers in the recycling triangle mean, why microbes struggle to digest most plastics, how big pieces become microplastics, where the world's plastic waste ends up, how recycling works, and what plastic-eating enzymes can and cannot do. Link monomers into a chain, melt a thermoplastic, try to digest polyethylene, and break a bottle into microplastics.
The chains that won’t break
Why the stuff we throw away refuses to go away.
Many parts
A polymer is a molecule made of many repeating pieces.
Opening a double bond
The simplest plastic, link by link.
A drop of water per link
The other way to build a chain.
The first fully synthetic plastic
A substitute for shellac changed the world.
A lucky leak
The most common plastic began with an accident.
Spaghetti or a net
How the chains hold together decides everything.
One to seven
A code for the material, not a promise.
No key for this lock
Plastic chains are new to nature.
One bottle, a million pieces
Breaking down is not the same as going away.
Nine percent
Most plastic waste is buried, burned or lost.
Two kinds of recycling
Every melt costs a little quality.
Evolution catches up
Some microbes are learning to eat polyester.
A wide-open mouth
Promising, and limited.
Strong by design
The same bonds, both ways.
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