{"id":22,"date":"2014-10-16T11:18:44","date_gmt":"2014-10-16T11:18:44","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/?page_id=22"},"modified":"2014-10-16T11:18:44","modified_gmt":"2014-10-16T11:18:44","slug":"part-2-%e2%80%93-polymers","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/part-2-%e2%80%93-polymers\/","title":{"rendered":"Part 2 \u2013 Polymers"},"content":{"rendered":"<p>Part 2 \u2013 Polymers<\/h1>\n<p>1. Polyethene is a synthetic plastic that is made from ethene. It is a very common plastic which is moulded into many different shapes, depending on its use. As it is non-biodegradable, many councils encourage householders to recycle this plastic rather than disposing of it in the bin, where it will end up in a landfill site, or incinerator.<\/p>\n<p>(a) Why is Polyethene referred to as a \u201csynthetic\u201d material?<br \/>\n(b) Which raw material is used to produce most plastics?<br \/>\n(c) Draw the full structural formula for ethene.<br \/>\n(d) Ethene is a small molecule that is obtained from much larger hydrocarbons. Name the process that is used to produce ethene from much larger hydrocarbons.<br \/>\n(e) What is meant by the term \u201cnon-biodegradable\u201d?<br \/>\n(f) Why is it dangerous to incinerate polyethene?<br \/>\n(g) Suggest why it is important to recycle plastics.<\/p>\n<p>2. For each of the following examples, suggest a property of the plastic that makes it suited for the use described.<\/p>\n<p>(a) Nylon is used for hiking jackets.<br \/>\n(b) PVC is used to make rain gutters and window frames.<br \/>\n(c) Polyethene is used to make plastic bags.<\/p>\n<p>3.<br \/>\n(a) Would a thermoplastic or thermosetting plastic be used for frying pan handles?<br \/>\n(b) Explain your answer to (a).<\/p>\n<p>4. Draw the structures of the polymers formed from the following monomers. Show 3 monomer units linked together.<\/p>\n<p><a href=\"http:\/\/d6vsczyu1rky0.cloudfront.net\/16286_b\/wp-content\/uploads\/sites\/80\/2014\/09\/Picture8.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-48\" src=\"http:\/\/d6vsczyu1rky0.cloudfront.net\/16286_b\/wp-content\/uploads\/sites\/80\/2014\/09\/Picture8.jpg\" alt=\"Picture8\" width=\"499\" height=\"103\" \/><\/a><\/p>\n<p>5. Draw the monomers and repeating units formed from the following polymers.<\/p>\n<p><a href=\"http:\/\/d6vsczyu1rky0.cloudfront.net\/16286_b\/wp-content\/uploads\/sites\/80\/2014\/09\/Picture9.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-47\" src=\"http:\/\/d6vsczyu1rky0.cloudfront.net\/16286_b\/wp-content\/uploads\/sites\/80\/2014\/09\/Picture9.jpg\" alt=\"Picture9\" width=\"1114\" height=\"201\" \/><\/a><\/p>\n<p>6. The structure of part of a polyacrylonitrile molecule is shown below.<\/p>\n<p><a href=\"http:\/\/d6vsczyu1rky0.cloudfront.net\/16286_b\/wp-content\/uploads\/sites\/80\/2014\/09\/Picture101.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-49\" src=\"http:\/\/d6vsczyu1rky0.cloudfront.net\/16286_b\/wp-content\/uploads\/sites\/80\/2014\/09\/Picture101.jpg\" alt=\"Picture10\" width=\"375\" height=\"167\" \/><\/a><\/p>\n<p>(a) Draw the structural formula for the monomer used to make this polymer.<\/p>\n<p>(b) Name a toxic gas produced when the polymer burns.<\/p>\n<p>7. Polybutene is used to make pipes which carry hot water under pressure. This is very useful in plumbing and underfloor heating.<\/p>\n<p>(a) Draw the structure of butene.<\/p>\n<p>(b) Draw polybutene by showing 3 monomer units linked together.<\/p>\n<p>(c) Butene has 3 isomers. Draw the isomer which<br \/>\n(i) could also be used to form a polymer<br \/>\n(ii) could not be used to form a polymer.<\/p>\n<p>8. Describe 2 plastics which are thought of as \u2018novel plastics\u2019. Describe the properties of these plastics and uses for these materials.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Part 2 \u2013 Polymers 1. Polyethene is a synthetic plastic that is made from ethene. It is a very common plastic which is moulded into many different shapes, depending on its use. As it is non-biodegradable, many councils encourage householders to recycle this plastic rather than disposing of it in the bin, where it will &hellip; <a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/part-2-%e2%80%93-polymers\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Part 2 \u2013 Polymers<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-22","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/pages\/22","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/comments?post=22"}],"version-history":[{"count":1,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/pages\/22\/revisions"}],"predecessor-version":[{"id":23,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/pages\/22\/revisions\/23"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecchemu3hwrk\/wp-json\/wp\/v2\/media?parent=22"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}