Polymerization of Styrene to Polystyrene

nC₈H₈ → (–CH₂–CH(C₆H₅)–)_n

Tổng quan

Styrene undergoes free radical addition polymerization to form polystyrene. The vinyl group polymerizes while the pendant phenyl groups provide rigidity and transparency. Expanded polystyrene (EPS) foam is produced by incorporating a blowing agent during polymerization.

Ví dụ thực tế

Styrofoam cups, food containers, packing peanuts, and insulation boards are all expanded polystyrene from this polymerization.

Tầm quan trọng công nghiệp

Over 15 million tonnes of polystyrene are produced annually for packaging, insulation, disposable cutlery, and electronics housings.

Tính chất

Loại: Organic
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -73,0 kJ/mol
Chất xúc tác: Benzoyl peroxide or AIBN

Phản ứng liên quan

Swern Oxidation Oxidation of Secondary Alcohol to Ketone Claisen Condensation (Ethyl Acetate) Kolbe Electrolysis Baeyer-Villiger Oxidation Beckmann Rearrangement (Cyclohexanone Oxime) Catalytic Hydrogenation of Ethylene Condensation Polymerization (Nylon 6,6) Cope Rearrangement Epoxidation of Alkenes (mCPBA)

Frequently Asked Questions

What is the equation for Polymerization of Styrene to Polystyrene?

The balanced equation is: nC₈H₈ → (–CH₂–CH(C₆H₅)–)ₙ.

What type of reaction is Polymerization of Styrene to Polystyrene?

Polymerization of Styrene to Polystyrene is a organic reaction.

Is Polymerization of Styrene to Polystyrene exothermic or endothermic?

Polymerization of Styrene to Polystyrene is exothermic (releases energy). The enthalpy change (ΔH) is -73.0 kJ/mol.

What conditions are needed for Polymerization of Styrene to Polystyrene?

This reaction requires a catalyst (Benzoyl peroxide or AIBN).