Polymer which is named as orlon is:
- Polyamide
- Polyacrylonitrile
- Polycarbonate
- Polyethene
The Correct Option is B
Solution and Explanation
- Orlon is the trade name for the synthetic polymer polyacrylonitrile (PAN).
- Polyacrylonitrile is a polymer made from the polymerization of acrylonitrile monomers.
- The structure of polyacrylonitrile consists of repeating units of the acrylonitrile monomer (CH2CH(CN)), which gives it its distinctive properties.
- Orlon is used primarily for making fibers that are used in fabrics and textiles, known for their durability, strength, and resistance to wear and chemicals.
Properties of Polyacrylonitrile (Orlon):
- High tensile strength and good abrasion resistance.
- Resistant to chemical attack and moisture absorption.
- It is a poor conductor of electricity, making it useful in various applications, including clothing and blankets.
Conclusion:
The polymer named Orlon is indeed polyacrylonitrile.
Top Questions on Polymers
- A polymer melt being extruded through a spinneret hole of circular cross-section exhibits a die-swell ratio of 2.2. The extrusion velocity and volumetric flow rate during this extrusion process are 20 m/min and \(2.6 \times 10^{-8}\) m\(^3\)/s, respectively. The maximum diameter (mm) of the extruded melt after exit from the spinneret hole (rounded off to 2 decimal places) is:
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Concepts Used:
Types of Polymerization Reactions
Polymerization is a chemical reaction in which a large number of monomer molecules combine to produce a polymer. A polymerization can yield macromolecules with a linear or branching structure. They can also take the form of a three-dimensional complicated network.
Types of Polymerisation
Polymerization reactions are divided into two groups, namely, Addition polymerization (chain reaction) and condensation reaction (step reaction).
- Addition Polymerisation: As the name denotes, we can see the addition of monomers to form a polymer, twice the number or even more than that. Here, we can either select monomers of the same species or of different species. When we choose the single species monomers for the polymerization, the product thus formed is known as homopolymer (for example polythene used to make bags). When we use two different species for additional polymerization, the polymer would be known as copolymer (for example, Buna-S and Buna-N).
- Condensation Polymerisation: In the condensation polymerisation, we can find elimination of compounds like HCL, water, alcohol etc...; while the monomers condense during the reaction process. This reaction happens between tri-function and bi-function monomer units and results in the formation of polymers like nylon.