scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 1,166
Year 11 Chemistry Unit 1 POLYETHENE-aint it choice word count 1131 Polyethene also known as polyethylene or polythene was the first of the polymers to be discovered Polyethene is a polymer produced by reacting oxygen and ethene in this reaction the small ethene molecules attach together to form long chain polymer molecules This process is known as addition polymerisation Polyethene in our world today has many uses some of these are mouldings-plastic bottles lids and caps different types of containers films-glad wrap and various plastic bags cable coverings-various pipes and insulating wire and cables As you can see polyethene has a huge variety of both domestic and industrial uses this is fairly impressive when you see that polyethene has only been around sense 1933 Polyethene is a thermoplastic material which is often described as wax-like it is extremely tough and is has an excellent chemical resistance It is also less dense than water and is the simplest polymer these attributes lead to polythene being an extremely useful substance Ethene C2H4 is a simple hydrocarbon molecule which consists of 2 carbon atoms and 4 hydrogen atoms Ethenes main use is in the production of polythene yet it is one of the most widely used petrochemicals in the world Ethene is an unsaturated colourless gas which can be ignited in the presence of oxygen Below is a diagram of ethene Polyethene is produced by allowing the free roaming ethene gas molecules to bond together to form long chain polyethene molecules In order for this to work a catalyst must be used a catalyst is a substance that can alter the rate of a chemical reaction without undergoing any chemical change itself During this process thousands of ethene molecules bond to from each molecule of polyethene Polyethene is simply a set of ethene molecules bonded together to form a chain these chains can
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA