Polymers are formed by the regular chemical bonding of many molecules called monomers.

The monomer is the smallest repetitive molecule present in a polymeric matter. The monomer's chemical and physical properties determine the characteristics of the produced polymer. A polymer is formed by the combination of over 100 monomers through chemical bonds.

Polymers are affordable products that are lightweight, easily formed, equipped good mechanical and thermal properties and fit for different purposes.

Additionally, they are aesthetic materials that have chemical stability and good corrosion resistance.

It is widely used thanks to all these favorable properties.

For example, Polycarbonate is used in eyeglass lenses to make them lightweight and non-breakable.

During the manufacturing of an automobile, approximately 150 kg of polymer is used in its various parts.

In the construction industry, polymers are used in many parts of the buildings due to its lightness and durability.

Polymers are divided into two based on their processing methods: Thermoplastics and Thermosets.

Thermosets are polymers that harden when heated and remain in this state forever. They are cross-linked, indissoluble and insoluble. They cannot be formed by dissolving and melting. Bakelite, silicone, etc. are a part of this group.

Thermoplastics are polymers that melt when heated and can be formed (reformed) repeatedly. It softens and flows and is formed under heat and pressure or dissolved in a solvent and then formed.

Polyethylene (PE), Polypropylene (PP), Polyvinylchloride (PVC), Polystyrene (PS), Polyethylene Ether Phthalate (PET), Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), Styrene Acrylonitrile (SAN), Ethylene Vinyl Acetate (EVA), Polylactic Acid (PLA), Polymethylmethacrylate (PMMA), Polyamide (PA), Thermoplastic Polyurethane (TPU), Acrylonitrile Styrene Acrylate (ASA), Polyoxymethylene (POM), etc. are a part of this group.

The most commonly used polymers today are polyethylene (PE), polypropylene (PP), polyvinylchloride (PVC), polystyrene (PS) and nylon synthetic rubbers.

The three important olefins* (they are the generic name of unsaturated hydrocarbons that can be added to a structure, such as ethylene, butylene, propylene, etc. They are denoted by the formula (CnH2n) used to produce these polymers are ethylene, propylene and butadiene.

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