Synthetic Polymers
Overview
The plastic bag in your hand, the window frame in your classroom, the insulation around electrical wiring - all of these are synthetic polymers, giant molecules built by joining thousands of small monomer units end to end. Polymers have transformed modern life, but their durability creates serious disposal problems.
In this lesson you will learn how addition polymers form from alkene monomers, how to draw repeat units and work backwards to find the monomer, and why disposing of polymers is an environmental challenge.
Objectives
- Know that an addition polymer is formed by joining up many small molecules called monomers
- Understand how to draw the repeat unit of the addition polymer poly(ethene)
- Understand how to deduce the structure of a monomer from the repeat unit of an addition polymer and vice versa
- Explain problems in the disposal of addition polymers, including their inertness and inability to biodegrade and the production of toxic gases when they are burned
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Synthetic Polymers. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- What type of bond must a monomer contain for addition polymerisation? A) A single bond B) A double bond C) An ionic bond D) A metallic bond Answer: B
- The monomer for poly(ethene) is: A) Methane B) Ethane C) Ethene D) Propene Answer: C
- Addition polymers are difficult to dispose of because they: A) Are very expensive B) Are non-biodegradable C) React with water D) Dissolve in soil Answer: B
- Burning PVC produces the toxic gas: A) Oxygen B) Nitrogen C) Hydrogen chloride D) Methane Answer: C
- During addition polymerisation, the C=C double bond: A) Stays the same B) Becomes a triple bond C) Opens to form single bonds D) Breaks completely Answer: C
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Practice Mock Questions
Want to practice mock questions on Synthetic Polymers? Download the Green Bridge CBT app to access mock questions and full practice assessments for this topic.
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