Question

Which of the following structures represents neoprene polymer?

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

Neoprene, often referred to as polychloroprene, belongs to a family of synthetic rubbers created by the polymerization of chloroprene.

Answer 1

The Correct Option is A

Neoprene Polymer is a type of rubber-like homopolymer obtained from 2-chloro buta-1,3-diene, a kind of Chloroprene. Neoprene is a polymer composed of repeating units of chloroprene (C₄H₅Cl).

The structure that represents neoprene polymer is as follows:

Therefore Option A) is the correct answer

Discover More From Chapter: Polymers

 

Answer 2

The structure that represents neoprene polymer is represented in the option (A).

Real-Life Applications

Neoprene has several advantageous qualities that allow it to be employed in various sectors. These are some of its uses:

• Neoprene is frequently used as an insulator in power transformers, light bulbs, cables, and other electrical applications due to its fire and static resistance.
• It frequently serves as a shield for devices like laptops for the same reason.

• Neoprene fabric works well for gloves and other protective clothing because it can withstand various temperatures while still being flexible and offering thermal resistance.
• Neoprene's resistance to water, chemicals, and oils strengthens the defence. Nitrogen is injected to boost insulation, which improves overall buoyancy, thus the suits must be weighted to prevent floating or dragging the diver back to the surface.
• Neoprene is utilized in wetsuits and diving suits due to its water and temperature resistance.
• Neoprene may be used to make vehicle parts because it is heat- and fire-resistant, abrasion-, tear-, solvent-, oil-, and weather-resistance. It is contained in belts, vibration mounts, shock absorber seals, hose covers, window and door seals, and hoses.
• Neoprene is utilized in medicine because of its flexibility, wearability, and capacity to hold its form over time.
• Neoprene is used to manufacture supports and braces, such as hand, knee, and elbow supports. Neoprene is used for packing since it is a soft material.

Question can also be asked as

• What is the structure of neoprene polymer?
• Which of the following structures is a polymer of chloroprene?
• What is the chemical formula for neoprene polymer?
• How is neoprene polymer made?
• What are the properties of neoprene polymer?

Answer 3

The correct answer is (A)

Neoprene, often referred to as polychloroprene, belongs to a family of synthetic rubbers created by the polymerization of chloroprene. 

Structure of Neoprene Polymer

Neoprene polymer is formed through the polymerization of chloroprene monomer units. 

• The monomer unit of neoprene consists of a butadiene backbone with a chlorine atom attached to one of the carbon atoms. 
• During the polymerization process, multiple chloroprene monomers undergo addition polymerization, leading to the formation of long-chain molecules with repeating units.
• The repeat unit of neoprene is represented as -CH2-CH(Cl)-CH=CH2, where the chlorine atom is attached to the second carbon atom of the butadiene backbone. 
• This structure provides flexibility, water resistance, chemical resistance, and thermal stability. 
• The presence of chlorine atoms in the polymer chain contributes to its excellent resistance to ozone, UV radiation, and chemicals.

Neoprene can also be vulcanized with sulfur and other additives to enhance its properties further. This cross-linking between polymer chains improves the material's strength, elasticity, and resistance to heat, chemicals, and abrasion. 

Preparation of Neoprene

• Potassium persulfate serves as the catalyst for polymerization.
• To crosslink distinct polymer chains, bifunctional nucleophiles, metal oxides, and thioureas are used.
• Rubber is created by emulsifying chloroprene in water and then polymerizing it with the help of free radical initiators.
• The chloroprene repeating unit can appear in a variety of ways in the resulting polymer chain, with trans-polychloroprene being the most common.
• Elasticity and color are produced through the use of diverse materials.
• A dough is created by combining the entire components. It is heated after that and transformed into sheets.

Properties of Neoprene

• All-purpose rubber that works well is neoprene.
• Neoprene is resistant to chemicals as well as water, heat, fires, oxygen, and ozone.
• Neoprene lasts a long time and does not require regular replacement because it is resistant to the elements and sunshine.
• Neoprene is valued for its capacity to withstand petroleum-based mixes such as solvents, oils, greases, Alkalies, etc.

Uses of Neoprene

• Neoprene is employed as hoses, gaskets, and corrosion-resistant coatings because it is more resistant to deterioration.
• Neoprene fabric is suitable for gloves and other safety equipment because it can function in a wide range of temperatures while providing heat resistance and remaining flexible.
• Due to its resistance to heat and water, neoprene is also utilized in wetsuits and diving suits.
• Due to its flexibility and wearability, neoprene is used to make supports and braces, including hand, knee, and elbow braces.

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