Polymerisation in Alkenes (OCR A-Level Chemistry A): Flashcards

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Polymerisation in Alkenes
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Polymers definition

Large molecules from many repeating monomer units

Addition polymerisation

Unsaturated alkenes join to form saturated polymer chains

Repeat unit

Smallest pattern that repeats throughout polymer chain

Poly(ethene) monomer

Ethene (CH2=CH2\text{CH}_2\text{=CH}_2)

PVC full name

Poly(chloroethene) or poly(vinyl chloride)

PTFE common use

Non-stick coatings for cookware

Biodegradable polymers

Broken down by microorganisms into water & CO2\text{CO}_2

Identify monomer from polymer

Copy repeat unit, change C-C\text{C-C} to C=C\text{C=C}

Polymerisation conditions

High temperature, high pressure, catalysts

Poly(lactic acid) source

Fermentation of plant sugars from sugar cane or corn

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