WebA copolymer of ethene and propene polymerised using Ziegler-Natta catalysts in the presence of a small proportion of conjugated diene, followed by vulcanisation yields an elastomer. How does the use of ethene and propene produce an elastomer? (6 marks) Please answer in as much detail as it is worth 6 marks and one anonymous Chegg tutor … WebJul 31, 2024 · The initiation step involves formation of radicals, and chain propagation entails stepwise addition of radicals to ethene molecules. Chain termination can occur by any reaction resulting in combination or disproportionation of free radicals. The polyethene produced in this way has from 100 to 1000 ethene units in the hydrocarbon chain.
NCERT Exemplar Class 12 Chemistry Chapter 15 Polymers
WebTwo derivatives of ethene which have been detected in dust clouds in Space are acrylonitrile (2-propenenitrile), CH2=CHCN, and vinyl alcohol (ethenol), CH2=CHOH. (b) … Webethene molecules can be joined together to form a polymer. The polymer is called poly ( ethene) because it is made from ethene. This is an example of addition polymerisation. … simply gentle dog food
10.9: Polymerization of Alkenes - Chemistry LibreTexts
WebLearn about and revise giant covalent molecules with this BBC Bitesize GCSE Chemistry (AQA) study guide. WebSep 19, 2024 · polymerised. Haw many moles of polymer might, theoretically, be formed? 2 10-6 ... polymerise ethene followed by hydration c H c H B c D polymerise ethene followed by oxidation with cold acidified KMn04 polymerise 1 ,2-dichloroethene followed by hydrolysis ... can also be manufactured from sugar. PHB is readily biodegradable. PHB ... WebSmall unsaturated ethene monomers join up by the opening of the double bond allowing them to join up to form a long carbon chain. Polymers made in this way are called … raystown camping pa