Polymerization of Styrene to Polystyrene

nC8H8 → (–CH2–CH(C6H5)–)n

概要

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.

日常の例

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

産業上の重要性

ポリスチレンは包装、断熱材、使い捨て食器、電子機器筐体として年間1,500万トン以上生産される。

特性

タイプ
Organic
可逆的
いいえ
エネルギー
発熱性
ΔH
-73.0 kJ/mol
触媒
Benzoyl peroxide or AIBN

関連する反応

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).