C1 0.0 / 5 ? SciencePolymersGCSEOCR Created by: okafor321Created on: 19-05-17 18:33 What is an alkane? a hydrocarbon with a single covalent bond. Saturated. 1 of 8 What is an alkene? a hydrocarbon with a carbon-carbon double bond. Unsaturated. 2 of 8 monomer? small molecules that can be reacted to produce polymers. 3 of 8 polymer? very large molecules, some of wich make up plastic. 4 of 8 polymerisation alkenes joining together without producing another substance. 5 of 8 name the properties of plastics easily moulded - waterproof - on-biodegradable - light - flexible - heat insulator - tough. 6 of 8 Gore-Tex a breathable material made from ylon. allows perspiration (water vapour) to escape whilst preventing rain to escape. 7 of 8 PTFE has very tiny holes allowing water vapour to escape but to small to let liquid water to pass through. 8 of 8
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