What is the structure of polyethylene?
(C₂H₄)ₙ
Polyethylene/Formula
What is the molecular structure of polypropylene?
Polypropylene is a tough, rigid and crystalline thermoplastic produced from propene (or propylene) monomer. It is a linear hydrocarbon resin. The chemical formula of polypropylene is (C3H6)n. PP is among the cheapest plastics available today.
What is the formula for the monomer of polyethylene?
Some Common Addition Polymers
| Name(s) | Formula | Monomer |
|---|---|---|
| Polyethylene low density (LDPE) | –(CH2-CH2)n– | ethylene CH2=CH2 |
| Polyethylene high density (HDPE) | –(CH2-CH2)n– | ethylene CH2=CH2 |
| Polypropylene (PP) different grades | –[CH2-CH(CH3)]n– | propylene CH2=CHCH3 |
| Poly(vinyl chloride) (PVC) | –(CH2-CHCl)n– | vinyl chloride CH2=CHCl |
What is the chemical name of polythene?
polyethene
Polyethylene or polythene (PE), IUPAC name polyethene or poly(methylene), is the most common plastic.
Is polyethylene linear or branched?
Linear low-density polyethylene The resultant structure has a linear backbone, but it has short, uniform branches that, like the longer branches of LDPE, prevent the polymer chains from packing closely together.
What is the structure of polyamide?
Polyamides are polymers where the repeating units are held together by amide links. An amide group has the formula – CONH2. An amide link has this structure: In an amide itself, of course, the bond on the right is attached to a hydrogen atom.
What is polypropylene sheet?
Polypropylene (PP) is a member of the environmentally-friendly polyolefin family. Polypropylene sheets have exceptional contact clarity, and resists distortion in lower gauges, which makes it ideal for applications that require heat sealing, like packaging materials, boxes, binders, and portfolios.
Is polyethylene a linear polymer?
Linear low-density polyethylene (LLDPE) is a substantially linear polymer (polyethylene), with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins.
What is polythene sheet?
Polythene sheeting is a plastic film made from petroleum (you may also hear it referred to as polyethylene sheeting, poly sheeting, plastic sheeting, plastic film and poly film). Polythene is almost completely waterproof, though it will allow oxygen, carbon dioxide and flavourings to pass through it.
What is the chemical structure of plastic?
Structure. Most plastics contain organic polymers. The vast majority of these polymers are formed from chains of carbon atoms, with or without the attachment of oxygen, nitrogen or sulfur atoms. These chains comprise many repeating units formed from monomers.
What is branched structure?
Branched polymers are defined as having secondary polymer chains linked to a primary backbone, resulting in a variety of polymer architectures such as star, H-shaped, pom-pom, and comb-shaped polymers.
What is structure of Bakelite?
Bakelite is a polymer made up of the monomers phenol and formaldehyde. This phenol-formaldehyde resin is a thermosetting polymer. We cannot deny the presence of polymers in our lives. We are surrounded by objects, most of which, some way or the other have a polymer associated with them.
What chemicals are similar to polyethylene?
Polyethylene consists of nonpolar, saturated, high molecular weight hydrocarbons. Therefore, its chemical behavior is similar to paraffin. The individual macromolecules are not covalently linked.
What is the chemical structure of polyethylene?
The chemical formula of polyethylene is (C 2H 4) n. Polyethylene is a combination of similar polymers of ethylene with different values of n. A typical polyethylene molecule can contain more than 500 ethylene subunits.
What is the chemical name for polyethylene?
Polyethylene glycol ( PEG; / ˌpɒliˈɛθəlˌiːn ˈɡlaɪˌkɒl, – ˌkɔːl /) is a polyether compound with many applications, from industrial manufacturing to medicine. PEG is also known as polyethylene oxide ( PEO) or polyoxyethylene ( POE ), depending on its molecular weight. The structure of PEG is commonly expressed as H− (O−CH 2 −CH 2) n −OH.
