Start studying bbc bitesize Ionic compounds. 18.00: Bad Blood Riding the Iron Horse - a roaring, full-throated Harley Davidson - across the open prairie is an American dream. Amines; Amino acids; Aromatic organic compounds; Phenols Here is an example. The tagging of seahorses is a delicate process because they have rigid bodies, prehensile tails and small fins. Learn vocabulary, terms, and more with flashcards, games, and other study tools. A shape memory polymer can change from a temporary shape that is achieved by deforming it, to a previous shape which is its permanent shape when it is not being deformed. Polymers are encountered in everyday life and are used for many purposes! Many polymers can be … 2014. Crystallinity.4. The researchers have developed a novel technique that allows them to tag the creatures without the need for risky continual adjustments. 12. Open Learn - Introduction to polymers. Polymers make up many of the materials in living organisms, and they constitute the basis of certain minerals and human-made materials, such as paper and plastics. [Greek polumerēs, consisting of many parts : polu-, poly- + meros, part; see (s)mer- in Indo-European roots.] Aromatics, Amines, Amino Acids,Polymers. Click on the resources below. Polymers are extensively found in nature. Products from Oil. BBC Bitesize - The periodic table . BBC - GCSE Bitesize: Structure And Properties Of Polymers - Higher . Easily access all the resources you need within Revisio - direct links to exam board specifications, past papers and top quality resources from BBC Bitesize. Ethanol is a two-carbon length alcohol. The identity and amount of the reagent used to crosslink the polymer chains. The properties of a polymer can be changed in a number of ways.. 1. mer (pŏl′ə-mər) n. Any of numerous natural and synthetic compounds of usually high molecular weight consisting of up to millions of repeated linked units, each a relatively light and simple molecule. These monomers (the starting materials) are often alkenes. BBC Bitesize - GCSE Chemistry - Products and effects of combustion - Activity From www .bbc .co .uk - April 25, 2015 11:35 AM A secondary school revision resource for Edexcel GCSE Science about products and effects of combustion Figure: 5 Example of a homologous series of alkanes with structure of CnH2n+2, Ivy Rose, (n.d) 2.4, 2.5 – As alkanes are saturate hydrocarbons, they are deemed unreactive due to containing single bonds such as C-H and C-C bonds which are quiet strong and difficult to break due to the strong intermolecular force. Polymers 9 Q56-58 2.3.2 BBC Bitesize The uses of polymers Giant Covalent Structures 10 Q45 Properties of covalent compounds Properties of metals and alloys Q45 BBC Bitesize The properties and uses of metals Metals as sonductors Q46-49 Diamond Q60-61 Structure of diamond and graphite Graphite 11 Q62 BBC Bitesize Properties and structure of graphite A monomer is a repeating chemical unit. Start studying bbc bitesize Polymers. Home; About Us. Other articles where Linear polymer is discussed: man-made fibre: Linear, branched, and network polymers: …a polymer with a simple linear structure is formed. The chemical name for Vitamin C. Food storage, food hygiene and cross contamination Functions of starchy carbohydrates in the body Healthy Eating guidelines and meal planning for young children exprart Heat transfer methods (conduction, convection and radiation) Polymers are made from many smaller molecules, called monomers. BBC Bitesize - Atoms. In other polymers the branches become numerous and cross-link to other polymer chains, thus forming a network structure. Higher and lower power points and lesson plans with resources for each. Head Master's Welcome; Happy Christmas from King's; Vision and Values; The School History; Staff; Policies; Ofsted; Governance; Statutory Information A polymer is a molecule, made from joining together many small molecules called monomers.The word "polymer" can be broken down into "poly" (meaning "many" in Greek) and "mer" (meaning "unit"). One of the bonds in each C=C breaks and forms a bond with the adjacent monomer. Polymers are chains made of monomer subunits. Small Molecules like glucose ==> Natural Polymers = Macromolecules like starch Carbohydrates (this page), Proteins and Oils & Fats are the main nutrient constituents of food. KS3 Polymers for the new national curriculum. ... Recall that polymers are made from small molecules called monomers joined together in very long chains. These polymers are formed either by the process of addition polymerization or condensation polymerization. Gelfand Centre - What is a polymer? The reagent used to initiate the polymerization reaction. It can also be prepared by ring-opening polymerization of lactide [–C(CH 3)HC(=O)O–] 2, the cyclic dimer of the basic repeating unit. The Cellulose is another natural polymer which is a main structural component of the plants. The structure also includes some unsaturated long chain unsaturated aliphatic … Medical applications range from important day-to-day products such as latex gloves, bandages, and tubing, to applications as advanced as self-tying sutures, implantable medical devices, and artificial joints. Fifty thousand leather-clad bikers make romance come true as they converge, from all over the States and beyond, on Sturgis, a sleepy farming town in South Dakota. Addition polymers are formed by the joining together of many monomers that contain C=C bonds. Properties of Polymers . Polymers are used in scores of industries for countless beneficial purposes, but no advances in polymer science are more striking than those in modern medicine. What are the Properties of Polymers?. The temperature and pressure at which the polymerization occurs All alcohol molecules possess at least one C-OH group, which is known as the functional group (gives the compound its properties). Essential Chemistry Industry Online - Polymers, an overview. Polymer, any of a class of natural or synthetic substances composed of very large molecules that are multiples of simpler chemical units. Study 6 5.2 BBC - GCSE Bitesize - Polymers flashcards from Arthur T. on StudyBlue. How the loss can be prevented. Structure Like alkenes and alkanes, ethanol is another type of organic (carbon-based) compound. BBC Bitesize – Designer polymers. The polymer formed contains only carbon carbon single bonds. Polylactic acid, or polylactide (PLA) is a thermoplastic polyester with backbone formula (C 3 H 4 O 2) n or [–C(CH 3)HC(=O)O–] n, formally obtained by condensation of lactic acid C(CH 3)(OH)HCOOH with loss of water (hence its name). A BBC/Open University production 1.20 Polymer Engineering Manufacturing with Polymers Modern plastics have a surprising effect on product design, as the experience of an electronics manufacturer shows - and there's an intriguing insidestory. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Polymers - Polymers - AQA - GCSE Design and Technology ... A popular polymer to use in schools is acrylic. Get ready for your exams Easily find curriculum specific exam paper questions as well as full past papers The properties of a polymer (or any other material) include strength, stiffness, hardness, density and melting point.. Polymers C2 Quick all you need to know styled mindmap with the most useful information from BBC Bitesize, Collins AQA revision guide and some other notes... 3.0 / 5 based on 1 rating Shape memory polymers are polymer materials that you can deform and then by applying a stimulus, such as heat or light, will return to its previous shape. Each polymer molecule is a long chain of (mainly carbon) atoms. GCSE Chemistry - GCSE Revision Buddy. Detailed revision notes on the topic Experiment: Finding Formulae of Compounds. Producer PHILIP ASHBY A BBC/Open University production 1.45 Pages from Ceefax 2.0 Scene Football Fans Abroad Chain length.2. Polymers are very large molecules (sometimes called macromolecules). What are some items made from polymeric materials that you frequently use? O2. GCSE Science resources, videos, web links and workbooks for GCSE Chemistry revision & homework help. Cross linking.. Chain Length.. A polymer molecule is a long chain of (mainly carbon) atoms. Recognise that the use of polymers are related to their properties. Naturally occurring miscellaneous polymers, like, for instance, shellac, a resin secreted by the lac insect. Naturally Occurring Molecules from plants and animals. The monomer polymerized or the monomers copolymerized. Open Access Polymer Science Journal - use key words specific to the question and … Written by teachers for the Edexcel IGCSE Chemistry course. Plasticizers.. 3. This can be heated and bent using a line bender and, as it is a thermoforming polymer, it can then be reheated and reshaped. new aqa science gcse chemistry revision guide Oct 25, 2020 Posted By Robin Cook Publishing TEXT ID 245f87a2 Online PDF Ebook Epub Library edition higher perfect revision for mocks and exams in 2021 and 2022 cgp gcse chemistry 9 1 revision by cgp books … The following variables can be controlled when producing a polymer. 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