{"id":7156,"date":"2026-09-08T17:56:43","date_gmt":"2026-09-08T16:56:43","guid":{"rendered":"https:\/\/www.onlinelearningsystem.net\/xyz\/?page_id=7156"},"modified":"2026-09-14T20:12:06","modified_gmt":"2026-09-14T19:12:06","slug":"topic-20-polymerisation","status":"publish","type":"page","link":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/","title":{"rendered":"Topic 20 Polymerisation"},"content":{"rendered":"\n<div class=\"ols-cie20-page\">\n\n  <aside class=\"ols-sidebar\">\n  <div class=\"ols-sidebar-header\">\n    <h3>Revision Notes<\/h3>\n    <p>Cambridge International AS &amp; A Level Chemistry<\/p>\n  <\/div>\n\n  <div class=\"ols-topic-group\">\n    <h4>Topic 20 Polymerisation<\/h4>\n\n    <ul class=\"ols-topic-list\">\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/\">20.1 Addition Polymerisation<\/a>\n\n        <ul class=\"ols-subtopic-list\">\n          <li>\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/polymerisation-reactions\/\">Polymerisation Reactions<\/a>\n          <\/li>\n          <li>\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/polymer-waste\/\">Polymer Waste<\/a>\n          <\/li>\n        <\/ul>\n      <\/li>\n    <\/ul>\n  <\/div>\n\n  <div class=\"ols-topic-group\">\n    <h4>Next Topics<\/h4>\n\n    <ul class=\"ols-topic-list\">\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-21-organic-synthesis\/\">Topic 21 Organic Synthesis<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-22-analytical-techniques\/\">Topic 22 Analytical Techniques<\/a>\n      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        <div class=\"ols-cie20-eyebrow\">Cambridge International AS Level Chemistry<\/div>\n          <h1>Topic 20<br>Polymerisation<\/h1>\n          <div class=\"ols-cie20-accent-bar\"><\/div>\n          <p class=\"ols-cie20-intro-lead\">Topic 20 covers addition polymerisation at AS Level: poly(ethene) and poly(chloroethene) as examples, deducing repeat units from monomers and monomers from polymer chains, and the difficulty of disposing of poly(alkene)s.<\/p>\n        <\/div>\n        <div class=\"ols-cie20-info-grid\">\n          <div class=\"ols-cie20-info-card\"><div class=\"ols-cie20-info-card-label\">Exam Papers<\/div><div class=\"ols-cie20-info-card-value\">Papers 1 &amp; 2<\/div><div class=\"ols-cie20-info-card-sub\">9701\/1 and 9701\/2 (AS Level)<\/div><\/div>\n          <div class=\"ols-cie20-info-card\"><div class=\"ols-cie20-info-card-label\">Learning Outcomes<\/div><div class=\"ols-cie20-info-card-value\">20.1.1 &#8211; 20.1.4<\/div><div class=\"ols-cie20-info-card-sub\">4 outcomes<\/div><\/div>\n          <div class=\"ols-cie20-info-card\"><div class=\"ols-cie20-info-card-label\">Topic Parts<\/div><div class=\"ols-cie20-info-card-value\">2 parts<\/div><div class=\"ols-cie20-info-card-sub\">Polymerisation and Polymer Waste<\/div><\/div>\n          <div class=\"ols-cie20-info-card\"><div class=\"ols-cie20-info-card-label\">Exam Board<\/div><div class=\"ols-cie20-info-card-value\">Cambridge<\/div><div class=\"ols-cie20-info-card-sub\">CIE 9701 (2025-2027)<\/div><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- TOPIC CARDS -->\n  <section class=\"ols-cie20-topics\">\n    <div class=\"ols-cie20-container\">\n      <div class=\"ols-cie20-section-header\">\n        <h2 class=\"ols-cie20-section-title\">Revision Notes<\/h2>\n        <p class=\"ols-cie20-section-sub\">Work through each part of Cambridge Topic 20 in a structured sequence.<\/p>\n      <\/div>\n      <div class=\"ols-cie20-cards-grid\">\n        <!-- Card 1: Polymerisation Reactions -->\n        <a class=\"ols-cie20-card ols-cie20-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/polymerisation-reactions\/\">\n          <div class=\"ols-cie20-card-img-wrap\">\n            <div class=\"ols-cie20-visual ols-cie20-visual--polymer\">\n              <div class=\"ols-cie20-visual-panel\">\n                <div class=\"ols-cie20-visual-kicker\">Addition polymers<\/div>\n                <div class=\"ols-cie20-visual-main\">Polymerisation<br>Reactions<\/div>\n                <div class=\"ols-cie20-config-line\" aria-hidden=\"true\"><span>n<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-cie20-card-num\">1<\/div>\n          <\/div>\n          <div class=\"ols-cie20-card-body\">\n            <p class=\"ols-cie20-card-title\">Polymerisation Reactions<\/p>\n            <p class=\"ols-cie20-card-desc\">Addition polymerisation of ethene, propene and chloroethene, repeat units and monomers.<\/p>\n            <span class=\"ols-cie20-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 2: Polymer Waste -->\n        <a class=\"ols-cie20-card ols-cie20-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/polymer-waste\/\">\n          <div class=\"ols-cie20-card-img-wrap\">\n            <div class=\"ols-cie20-visual ols-cie20-visual--waste\">\n              <div class=\"ols-cie20-visual-panel\">\n                <div class=\"ols-cie20-visual-kicker\">Disposal<\/div>\n                <div class=\"ols-cie20-visual-main\">Polymer<br>Waste<\/div>\n                <div class=\"ols-cie20-config-line\" aria-hidden=\"true\"><span>\u267b<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-cie20-card-num\">2<\/div>\n          <\/div>\n          <div class=\"ols-cie20-card-body\">\n            <p class=\"ols-cie20-card-title\">Polymer Waste<\/p>\n            <p class=\"ols-cie20-card-desc\">Non-biodegradability of poly(alkene)s, harmful combustion products, incineration, recycling and cracking.<\/p>\n            <span class=\"ols-cie20-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n      \n\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- SPECIFICATION -->\n  <section class=\"ols-cie20-spec-section\">\n    <div class=\"ols-cie20-container\">\n      <div class=\"ols-cie20-spec-wrap\">\n        <div class=\"ols-cie20-spec-pill\">Specification Coverage<\/div>\n        <h2 class=\"ols-cie20-spec-heading\">Topic 20 Polymerisation &#8211; Cambridge International AS Level Chemistry<\/h2>\n        <p class=\"ols-cie20-spec-intro-text\">The following Cambridge learning outcomes state what candidates should be able to do for Topic 20. Wording is taken from the Cambridge International AS &amp; A Level Chemistry 9701 syllabus for 2025 to 2027.<\/p>\n\n        <h3 class=\"ols-cie20-spec-group-title\">20.1 Addition polymerisation<\/h3>\n<div class=\"ols-cie20-spec-rows\">\n<div class=\"ols-cie20-spec-row ols-cie20-spec-row--light\"><div class=\"ols-cie20-spec-code\">20.1.1<\/div><div class=\"ols-cie20-spec-text\">describe addition polymerisation as exemplified by poly(ethene) and poly(chloroethene), PVC<\/div><\/div>\n<div class=\"ols-cie20-spec-row ols-cie20-spec-row--mid\"><div class=\"ols-cie20-spec-code ols-cie20-spec-code--mid\">20.1.2<\/div><div class=\"ols-cie20-spec-text\">deduce the repeat unit of an addition polymer obtained from a given monomer<\/div><\/div>\n<div class=\"ols-cie20-spec-row ols-cie20-spec-row--light\"><div class=\"ols-cie20-spec-code\">20.1.3<\/div><div class=\"ols-cie20-spec-text\">identify the monomer(s) present in a given section of an addition polymer molecule<\/div><\/div>\n<div class=\"ols-cie20-spec-row ols-cie20-spec-row--mid\"><div class=\"ols-cie20-spec-code ols-cie20-spec-code--mid\">20.1.4<\/div><div class=\"ols-cie20-spec-text\">recognise the difficulty of the disposal of poly(alkene)s, i.e. non-biodegradability and harmful combustion products<\/div><\/div>\n<\/div>\n        <\/div>\n      <\/div>\n    \n  <\/section>\n\n<script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"WebPage\",\n      \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/#webpage\",\n      \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/\",\n      \"name\": \"Topic 20 Polymerisation - Cambridge International AS Level Chemistry Revision Notes\",\n      \"description\": \"Free CIE 9701 Topic 20 Polymerisation revision notes: addition polymerisation, poly(ethene) and PVC, repeat units, monomers and the disposal of poly(alkene)s.\",\n      \"isPartOf\": {\n        \"@type\": \"WebSite\",\n        \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/#website\",\n        \"name\": \"Online Learning System\",\n        \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/\"\n      },\n      \"inLanguage\": \"en-GB\"\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/#breadcrumb\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Revision Notes\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"A Level Chemistry\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Cambridge International (CIE)\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 4,\n          \"name\": \"Topic 20 Polymerisation\",\n          \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/cie\/topic-20-polymerisation\/\"\n        }\n      ]\n    }\n  ]\n}<\/script>\n\n<\/div>\n\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Revision Notes \/ A Level Chemistry \/ Cambridge International (CIE) \/ Topic 20 Polymerisation Cambridge International AS Level Chemistry Topic 20Polymerisation Topic 20 covers addition polymerisation at AS Level: poly(ethene) and poly(chloroethene) as examples, deducing repeat units from monomers and monomers from polymer chains, and the difficulty of disposing of poly(alkene)s. Exam Papers Papers 1 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":7150,"menu_order":19,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7156","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/7156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/comments?post=7156"}],"version-history":[{"count":0,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/7156\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/7150"}],"wp:attachment":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/media?parent=7156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}