The document discusses the invention of plastics, starting with celluloid by John Wesley Hyatt in 1869 and followed by Bakelite by Leo Baekeland in 1907. It highlights the properties and advantages of plastics, including their malleability, cost-effectiveness, and potential for recycling, as well as the discovery of enzymes like mhetase that break down PET plastic. The content includes references to further readings on plastics and their impact.

2.  A new material developed by
American inventor John Wesley
Hyatt in 1869. Considered the
first semi-synthetic plastic,
celluloid was invented to replace
ivory in billiard balls. Actually it was
not successful invention- Though it
made others to think
 In 1907 Leo Baekeland invented
Bakelite, the first fully synthetic
plastic, meaning it contained no
molecules found in nature.

3.  Plastics are a wide range of synthetic or semi-
synthetic organic compounds that are malleable
and so can be molded into solid objects.
 This plastic's melting point is 170 degrees
Celsius (338 degrees Fahrenheit).
 Plasticity is the general property of all materials
which can deform irreversibly without breaking
but, in the class of moldable polymers, this
occurs to such a degree that their actual name
derives from this specific ability.

6.  Cost wise cheaper compared to other
substitutes
 Reformable, Sufficiently available to make a
plastic road in equatorial line of the earth
 Recycling rate may vary based on the
components in the particular product
 Use and throwable (if we doesn’t care on… )
 Easy to produce (Hard to reduce)

8. Petases are an esterase class
of enzymes that catalyze the hydrolysis
of polyethylene terephthalate (PET) plastic
to monomeric units
Mono-2-hydroxyethyl terephthalate (MHET).
The enzyme mhetase is a hydrolase, which
was discovered in 2016.

13.  www.pnas.org
 www.nature.com
 https://www.research-in-Germany.org
 https://www.sciencedirect.com
 https://www.uniprot.organization