Compléter PolymersVersion en ligne basics on polymers par Rita Bandirali 1 A is a long - chain molecule made up of many repeating . The small , reactive that react together are called . ADDITION POLYMERISATION The double bonds in alkenes can up and together to make long . It ? s kind of like they're holding in a big line . This is called polymerisation . Addition polymerisation is characterised by : - monomers which are , e . g . contain a C = C bond - the polymer being the only of the reaction Example : Up to 10000 ethene monomers can together to form the chains of poly ( ethene ) . CONDENSATION POLYMERISATION A reaction where two join to form one larger compound and a small is released . When the small molecule is the reaction is also a dehydration reaction Monomers contain two different groups capable of reacting with each other . This occurs in two ways : - the two different functional groups are found within the same , as in amino acids ; each amino acid monomer has a - NH2 functional group and a - COOH functional group . - the two different functional are found in two different molecules ; for example , 6 , 6 is made from two different monomers - one monomer has two - NH2 functional groups and the other monomer has two - COOH functional groups .
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