Structure 2.4: Flashcards
Master the definitions: Alloys, Polymers, and Bonding.
#1
Bonding Triangle Axes
X: Average Electronegativity. Y: Difference in Electronegativity.
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#2
Why are alloys harder?
Different sized atoms disrupt the lattice, preventing layers from sliding over each other.
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#3
Addition Polymerization
Joining monomers with C=C bonds. 100% Atom Economy.
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#4
Condensation Polymerization
Joining monomers with 2 functional groups, releasing a small molecule (water/HCl).
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#5
Linkage in Polyester
Ester Link (-COO-)
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#6
Linkage in Polyamide
Amide Link (-CONH-)
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#7
Biodegradability Rule
Condensation polymers hydrolyze (biodegrade) due to polar links. Addition polymers do not (inert C-C backbone).
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#8
Intermediate Bonding Example
Silicon (Semiconductor) or SiC (Covalent/Metallic border).
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