CHAPTER 14 Flashcards
(11 cards)
What are polymers
Many repeat unit
What is a type of hydrocarbon that you cannot make polymer with? Why?
Saturate hydrocarbons…nowhere to attatch shit
What type of hydrocarbonds can you make polymers with? Why?
Unsaturated hydrocarbons with double or triple bonds…they are somewhat unstable and can form new bonds
What are isomerism?
Two compounds with the same chemical formula with diff structures
What are copolymers?
Two or more monomers polymerized together
What are the types of copolymers?
-Random
-Alternating (ABAB)
-Block (AAABBAAABB)
-Graft (looks like tree (AAA) with branch (BBB)
What are crystal structures in polymers?
Ordered atomic arrangements involving molecular chains
Why is it hard to make polymer crystals?
Long ass mobile ass chains so they’re hard to pack
What are crystalline regions in polymers?
-Thin platelets with chain folds at faces
-Chain folded structure
How does temperature relate to % crystallinity?
Increase in temp increases % crystallinity
Hwo do you form single polymer crystals?
With slow and carefully controlled growth rates
