Polymerization of Ethylene to Polyethylene

nC2H4 → (–CH2–CH2–)n

अवलोकन

Ethylene molecules undergo addition polymerization to form polyethylene, the world's most produced plastic. The C=C double bond opens and links to adjacent monomers. Ziegler-Natta catalysts produce linear HDPE, while radical initiation produces branched LDPE. Over 100 million tonnes are produced annually.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Ethylene C₂H₄ 1 (g)

रोजमर्रा का उदाहरण

Plastic bags, bottles, food containers, and plastic wrap are all made from polyethylene produced by this polymerization reaction.

औद्योगिक महत्व

Polyethylene is the world's most produced plastic at over 100 million tonnes annually, used in packaging, construction, automotive, and medical applications.

गुण

प्रकार
Organic
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-93.0 kJ/mol
उत्प्रेरक
Ziegler-Natta or metallocene catalysts

संबंधित अभिक्रियाएँ

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 Ethylene to Polyethylene?
The balanced equation is: nC₂H₄ → (–CH₂–CH₂–)ₙ.
What type of reaction is Polymerization of Ethylene to Polyethylene?
Polymerization of Ethylene to Polyethylene is a organic reaction.
Is Polymerization of Ethylene to Polyethylene exothermic or endothermic?
Polymerization of Ethylene to Polyethylene is exothermic (releases energy). The enthalpy change (ΔH) is -93.0 kJ/mol.
What conditions are needed for Polymerization of Ethylene to Polyethylene?
This reaction requires a catalyst (Ziegler-Natta or metallocene catalysts).