Polymerization of Styrene to Polystyrene

nC8H8 → (–CH2–CH(C6H5)–)n

概述

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.

日常示例

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

工业重要性

聚苯乙烯每年产量超过1500万吨，广泛用于食品包装、一次性餐具和建筑隔热材料，是重要的工程塑料。

属性

类型
Organic
可逆
否
能量
放热
ΔH
-73.0 kJ/mol
催化剂
Benzoyl peroxide or AIBN

相关反应

Epoxidation of Alkenes (mCPBA) Swern Oxidation Oxidation of Secondary Alcohol to Ketone E2 Elimination (Dehydrohalogenation) Claisen Condensation (Ethyl Acetate) Aldol Condensation of Acetaldehyde Kolbe Electrolysis Baeyer-Villiger Oxidation Beckmann Rearrangement (Cyclohexanone Oxime) Dehydration of Ethanol

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).