Polymerization of Styrene to Polystyrene

nC₈H₈ → (–CH₂–CH(C₆H₅)–)_n

Visão geral

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.

Exemplo do cotidiano

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

Importância industrial

Mais de 15 milhões de toneladas de poliestireno são produzidas anualmente para embalagens, isolamento, talheres descartáveis e caixas de eletrónica.

Propriedades

Tipo: Organic
Reversível: Não
Energia: Exotérmico
ΔH: -73,0 kJ/mol
Catalisador: Benzoyl peroxide or AIBN

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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).