Podcast
Questions and Answers
What is the main characteristic of chain-growth polymerization?
What is the main characteristic of chain-growth polymerization?
- Multiple growth points along the chain
- Monomers add one-by-one to the same end of a growing chain (correct)
- Oligomers react together to give longer chains
- Covalently bonded linking units between chains
What type of polymerization is associated with step growth?
What type of polymerization is associated with step growth?
- Addition polymerization
- Condensation polymerization (correct)
- Cross-linking polymerization
- Linear polymerization
What is the term for regions of a polymer where chains are highly ordered with respect to one another?
What is the term for regions of a polymer where chains are highly ordered with respect to one another?
- Van der Waals regions
- Cross-links
- Oligomers
- Crystallites (correct)
What type of polymer has short branches connected to the main chain?
What type of polymer has short branches connected to the main chain?
What forces hold individual polymer chains together?
What forces hold individual polymer chains together?
What is the characteristic of a cross-linked polymer?
What is the characteristic of a cross-linked polymer?
What is the primary difference between synthetic polymers and biopolymers?
What is the primary difference between synthetic polymers and biopolymers?
Which type of polymer is prepared from alkenes through addition reactions?
Which type of polymer is prepared from alkenes through addition reactions?
What type of reaction is involved in the synthesis of condensation polymers?
What type of reaction is involved in the synthesis of condensation polymers?
What is the main focus of the discipline that polymer chemistry is a part of?
What is the main focus of the discipline that polymer chemistry is a part of?
What is the name of the discipline that involves the creation of new materials with improved properties?
What is the name of the discipline that involves the creation of new materials with improved properties?
How are polymer formulas typically written?
How are polymer formulas typically written?
What happens to thermoplastic polymers when heated?
What happens to thermoplastic polymers when heated?
What type of polymers have both ordered crystalline regions and amorphous noncrystalline regions?
What type of polymers have both ordered crystalline regions and amorphous noncrystalline regions?
Why are thermosetting polymers rigid?
Why are thermosetting polymers rigid?
What is a characteristic of elastomers?
What is a characteristic of elastomers?
What affects the density of a polymer?
What affects the density of a polymer?
What is the result of increased ordering in polymer chains?
What is the result of increased ordering in polymer chains?
