Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 7: Problem 128

Polyvinyl chloride is a/an (a) chain growth polymer (b) thermoplastic polymer (c) cross linked polymer (d) elastomer

Short Answer

Expert verified
a) Chain growth polymer b) Thermoplastic polymer c) Cross-linked polymer d) Elastomer Answer: (b) Thermoplastic polymer

Step by step solution

01

Option A: Chain growth polymer

A chain growth polymer is formed by a reaction between monomers, in which the reactive center of the growing polymer chain adds more monomers one at a time, resulting in a linear or branched structure. Polyvinyl chloride (PVC) is formed from the polymerization of vinyl chloride monomers, which is a chain growth polymerization process. This option is partially correct.
02

Option B: Thermoplastic polymer

Thermoplastic polymers are materials that can be melted and reshaped multiple times without significant degradation of their properties. These polymers have a linear or slightly branched structure that allows them to soften and flow under heat. PVC is an example of a thermoplastic polymer. This option is also correct.
03

Option C: Cross-linked polymer

Cross-linked polymers have a three-dimensional network structure formed by covalent or other strong bonds between individual polymer chains. This structure makes them resistant to melting and limits their ability to flow under heat. Although it's possible to cross-link PVC in specific applications (resulting in a material called cross-linked PVC or XLPE), PVC is not inherently a cross-linked polymer. This option is not the best answer.
04

Option D: Elastomer

Elastomers are a group of polymers that possess high elasticity and can be deformed and return to their original shape without breaking. These materials include rubber, silicone, and certain thermoplastic elastomers. PVC does not exhibit elastomeric properties and therefore is not an elastomer. This option is incorrect. In conclusion, although PVC is a chain growth polymer (option A), the most distinctive property that characterizes PVC and best fits the options given is its nature as a thermoplastic polymer (option B). Therefore, the correct answer is: (b) thermoplastic polymer

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The reagent that can be used to distinguish between glucose and fructose is (a) Fehling's solution (b) Schiff's reagent (c) Bromine water (d) both (a) and (b)

This section contains multiple choice questions. Each question has 4 choices (a), (b), (c) and (d), out of which ONLY ONE is correct. An organic compound was fused with sodium and the water extract was treated with silver nitrate solution when a black precipitate was obtained. The test suggests (a) absence of halogen (b) presence of sulphur (c) presence of nitrogen (d) presence of halogen

An organic compound (A) gives violet colour with neutral \(\mathrm{FeCl}_{3}\). It answers Liebermann's test. This compound on catalytic reduction gives (B). The saturated compound (B) on oxidation with \(\mathrm{CrO}_{3}\) gives (C) of molecular formula \(\mathrm{C}_{6} \mathrm{H}_{10} \mathrm{O}\). (C) gives precipitate with 2,4 -dinitrophenylhydrazine. (C) can be obtained by reductive ozonolysis of (D). The other product of reductive ozonolysis, (E), undergoes Cannizzaro reaction with benzaldehyde to give (F) and HCOONa. Answer the following questions. Which of the statements about (F) is wrong? (a) (F) can have intermolecular hydrogen bonding. (b) (F) is produced by SN1 reaction of \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Cl}\) with \(\mathrm{OH}^{\circ}\). (c) (F) undergoes facile dehydration. (d) (F) reacts with acetic anhydride to form a compound used in perfumery.

Each question in this section has four suggested answers of which ONE OR MORE answers will be correct. Which of the following pairs contain only reducing carbohydrates? (a) maltose, sucrose (b) fructose, maltose (c) starch, ribose (d) glucose, galactose

Discuss the main purpose of vulcanization of rubber.
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Read Explanation

Chemistry Branches

Read Explanation

Organic Chemistry

Read Explanation

The Earths Atmosphere

Read Explanation

Physical Chemistry

Read Explanation

Chemical Analysis

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free