18 Questions
What is the main characteristic of chain-growth polymerization?
Monomers add one-by-one to the same end of a growing chain
What type of polymerization is associated with step growth?
Condensation polymerization
What is the term for regions of a polymer where chains are highly ordered with respect to one another?
Crystallites
What type of polymer has short branches connected to the main chain?
Branched polymer
What forces hold individual polymer chains together?
Van der Waals forces
What is the characteristic of a cross-linked polymer?
Has covalently bonded linking units between chains
What is the primary difference between synthetic polymers and biopolymers?
Method of synthesis
Which type of polymer is prepared from alkenes through addition reactions?
Addition polymers
What type of reaction is involved in the synthesis of condensation polymers?
Condensation reaction
What is the main focus of the discipline that polymer chemistry is a part of?
Creation of new materials with improved properties
What is the name of the discipline that involves the creation of new materials with improved properties?
Materials science
How are polymer formulas typically written?
By enclose the repeating unit within brackets, followed by the letter n
What happens to thermoplastic polymers when heated?
They soften to be molded.
What type of polymers have both ordered crystalline regions and amorphous noncrystalline regions?
Thermoplastic polymers
Why are thermosetting polymers rigid?
Because of the cross-links between chains
What is a characteristic of elastomers?
They can be stretched and return to their original state
What affects the density of a polymer?
The presence of substituents or branches
What is the result of increased ordering in polymer chains?
The polymer becomes more dense
Learn about the classification of polymers, including chain-growth and step growth processes. Understand how monomers react to form polymers of various lengths.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
