Explain how chain branching, cross-linking, stereochemistry (isotactic, syndiotactic, or atactic), and plasticizers affect the properties of polymers.

Q: During our lectures on polymeric materials, I used polyethylene as an example because of its very…

A: Polymerization of ethylene and formation of polyethylene takes place as follows:

Q: Novolac is the linear polymer which on heating with formaldehyde forms cross-linked bakelite. Write…

A: To give the structure of monomers and the polymer novolac.

Q: Use an example to show how branching and crosslinking can affect the physical behavior of a polymer.

A: Polymers are molecules that have a repeating basic unit called monomers. polymers are long chained…

Q: Polybutadiene-b-polystyrene-b-polybutadiene can be grown from the "outside in" or inside out"…

A: Polymerization reactions are the reactions by which polymers are formed from the respective…

Q: List down the classification of Biodegradable polymers with it's importance and function.

A: Biodegradable polymers are classified as, Natural biodegradable polymers                 Obtained…

Q: Describe the addition and the condensation polymers.  Explain the difference between the reactions…

A: On the basis of mode of synthesis, polymers are classified in to two categories 1) addition…

Q: 2. In your own words, explain the difference between step-reaction polymerization and chain-reaction…

A: Polymerization is the chemical process of combining monomers to form a polymer, a large…

Q: Explain the differences between addition polymerization and condensation polymerization?

A: The differences between addition polymerization and condensation polymerization have to be explained…

Q: In what solvent is Polyethylene most soluble in? 1) ethanol 2) saturated aqueous NaCl 3) hexanes…

A: like dissolves like means polar dissolves in polar and non polar dissolves in non polar

Q: What are the different polymers used in the preparations of cosmetics?

A: Polymers used in the preparations of cosmetics are as follows 1. Structuring Agents a)…

Q: When the polytetrafluoroethylene polymer is exposed to high temperature for a long time, Write the…

A: Depolymerization :-         It is the process to converting a polymer into monomer or mixture of…

Q: Polymers can be cross-linked using a variety of reactions that create connections between different…

A: To cross-link the polystyrene derivative with terephthaloyl chloride and AlCl3, one repeat unit of…

Q: classification based on structure of polymers are elastomers ,thermoplastics and thermosetting,…

A: Given: Classification based on the structure of polymers are elastomers, thermoplastics and…

Q: #9: Which polymer would you expect to be more rigid at room temperature: isotactic-polypropylene…

A: Addition polymerization takes place when monomers join together to form a chain without forming of…

Q: Illustrate two approaches which will change the properties such as strength, flexibility etc. of a…

A: Polymers are chemical compounds that are composed of larger molecules called macromolecules. These…

Q: Why can’t chemical recycling–that is, the conversion of polymer to monomers and re-conversion of…

A: In the preparation of low-density polythene, very high pressure is required which is around 1000 to…

Q: Write the monomers of the following polymers and classify them as addition or condensation polymers…

A: Polymers are the macromolecules formed by the repeating units of many monomers in a systematic…

Q: Define polymer

A: Polymers are frequently used in our day-to-day life and can be defined as shown below:

Q: Analysis of a sample of polyacrylonitrile shows that there are six lengths of chains, with the…

A: The Weight average molecular weight of a polymer is given by--------------- Mw = ∑i = 0∞Ni Mi2∑i =…

Q: Consider a hypothetical tough polymer that exhibits exceptional mechanical properties. This polymer…

A: The exceptional toughness of a hypothetical polymer arises from several key polymer chemistry…

Q: Briefly describe the differences in the physical properties of linear polyethylene, isotactic…

A: Given: To determine the differences in the physical properties of linear polyethylene, isotactic…

Q: Describe how polymers are formed from monomers?

A: ANSWER IS DISCUSSED BELOW :

Q: What are important factors influencing the properties of polymers?

A: Polymers are materials made of long, repeating chains of molecules. The materials have unique…

Q: Polychloroprene, commonly known as neoprene, is widely used in wetsuits and in rubber parts that…

A: Polymers are the molecules of high molecular masses formed by the combination of a repeating…

Q: What is polymer condensation?

A: The word polymer means many units/parts. Polymer is defined as chemical substance of high molecular…

Q: What aspect of thermoset polymers can be controlled to increase strength?

A: Thermosetting polymer or plastic is referred to those polymers which are hardened irreversibly by…

Q: Using poly(propylene) as an example, please explain ‘tacticity’ in polymers, and ‘tacticity’ arises…

A: It is a relative stereochemistry of adjacent chiral centre within a macromolecule.

Q: end groups contribute insignificant to the physical/chemical properties of polymers

A: According to the question we have to clearify the types of polymers end can contribute relatively…

Q: One of the polymers that exhibit tacticity is polypropylene. Show the structure of atactic,…

A: