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Polymerisation Help

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Most UniQue™:
Guys can any1 explain me in detail about polymerization (condensation and addition)? They are hard and I cant solve questions regarding them! Plz help me as soon as possible, i dont want to get bad cuz of this topic only!! Plz also solve a question as an example so that i can get how it is?

Any reference to a site will also be helpful....

Thanks a lot

EMO123:
i have got some notes
have a look at it there is given the additional Polymerisation

EMO123:
A significant proportion of clothing is made using polyster fibre. Polyster is also used to make plastic bottles for drinks. ployster is made by polymerising ethane-1,2-diol with benzene-1,4-dicarboxylic acid(terepthalic acid). As each ester link is made, a water molecule is lost - a condensation reation occurs. so the formation of a polyster is an example of condesation polymerisation.see in the figure(sry for not a clear image)

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