Polymerization of Styrene to Polystyrene

nC8H8 → (–CH2–CH(C6H5)–)n

개요

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.

일상 속 예시

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

산업적 중요성

포장, 단열, 일회용 식기, 전자제품 케이스용으로 연간 1,500만 톤 이상의 폴리스타이렌이 생산됩니다.

성질

유형
Organic
가역 반응
아니오
에너지
발열
ΔH
-73.0 kJ/mol
촉매
Benzoyl peroxide or AIBN

관련 반응

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).