29 Questions
What is a polymer?
A large molecule made up of monomers
What does the term 'polymer' mean in Greek?
Many parts
Which property is concerned with the extent to which the polymer expands or contracts when heated or cooled?
Thermal expansion
In which type of polymers are the polymer chains arranged in a regular structure instead of a random fashion?
Crystalline polymers
What is the main difference between natural and synthetic polymers?
Source of origin
Which property is concerned with the extent to which the plastic or polymer acts as an effective insulator against the flow of heat?
Heat capacity
What property refers to the extent to which a polymer can pass extraneous materials?
Permeability
Which natural polymer is responsible for carrying oxygen from the lungs to the body's tissues?
Hemoglobin
Which synthetic polymer is often referred to as a type of plastic?
Nylon
Which property is concerned with the force it takes to stretch the plastic in one direction?
Elastic modulus
What is the main source of dietary fiber for humans and provides structural support to plants?
Carbohydrates
Which natural polymer constitutes almost all living organisms and includes some proteins known as enzymes?
Proteins
What property refers to the extent to which a plastic affects light as it passes through the polymer?
Refractive index
What are the macromolecules that make up polymers called?
Monomers
Which property of a polymer refers to the extent to which it expands or contracts when heated or cooled?
Thermal expansion
What is the main difference between natural and synthetic polymers?
Source of origin
What is the extent to which a plastic or polymer acts as an effective insulator against the flow of heat known as?
Heat capacity
What natural polymer constitutes almost all living organisms and includes some proteins known as enzymes?
Proteins
In which type of polymers are the polymer chains arranged in a regular structure instead of a random fashion?
Crystalline polymers
What property refers to the strength of the plastic?
Tensile strength
Which polymer is responsible for carrying oxygen from the lungs to the body's tissues?
Hemoglobin
Which property refers to the extent to which a plastic affects light as it passes through the polymer?
Refractive index
What is defined as materials that widely occur in nature or are extracted from plants or animals?
Natural polymers
Which synthetic polymer is often referred to as a type of plastic?
Nylon
What provides structural support to plants and is an important source of dietary fiber for humans?
Cellulose
What refers to the tendency of a polymer to pass extraneous materials?
(Permeability)
What is the force it takes to stretch the plastic in one direction?
(Elastic modulus)
What is the most abundant protein in our body and provides structure and support to our skin, bones, tendons, and other connective tissues?
(Collagen)
What is a polymer?
A material that can be shaped or molded into any form
Study Notes
Polymer Basics
- A polymer is a macromolecule composed of many smaller molecules, called monomers, that are bonded together.
- The term "polymer" comes from the Greek words "poly" meaning many and "meros" meaning part.
Physical Properties of Polymers
- Thermal expansion refers to the extent to which a polymer expands or contracts when heated or cooled.
- Thermal insulation refers to the extent to which a plastic or polymer acts as an effective insulator against the flow of heat.
- Tensile strength refers to the force it takes to stretch the plastic in one direction.
- Permeability refers to the extent to which a polymer can pass extraneous materials.
- Transparency refers to the extent to which a plastic affects light as it passes through the polymer.
Types of Polymers
- Natural polymers are materials that widely occur in nature or are extracted from plants or animals.
- Examples of natural polymers include cellulose, proteins, and starch.
- Synthetic polymers are man-made materials that are created in a laboratory or factory.
- Examples of synthetic polymers include nylon, polyester, and polyethylene.
Examples of Polymers
- Hemoglobin is a natural polymer responsible for carrying oxygen from the lungs to the body's tissues.
- Cellulose is a natural polymer that provides structural support to plants and is an important source of dietary fiber for humans.
- Proteins are natural polymers that constitute almost all living organisms and include enzymes.
- Collagen is the most abundant protein in the human body and provides structure and support to skin, bones, tendons, and other connective tissues.
- Nylon is a synthetic polymer often referred to as a type of plastic.
Polymer Structure
- In crystalline polymers, the polymer chains are arranged in a regular structure instead of a random fashion.
This quiz provides an overview of polymer chemistry, covering the definition and classification of polymers as natural or synthetic substances composed of large molecules called macromolecules. It also explains the concept of monomers and their role in forming polymers.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
