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    I'm struggling on understanding how you know which alkenes have been used to create a copolymer when you are given the copolymer's structural formula. I just don't get how you do it and the Chemical Ideas book isn't so helpful . Any advice?

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    (Original post by krisshP)
    I'm struggling on understanding how you know which alkenes have been used to create a copolymer when you are given the copolymer's structural formula. I just don't get how you do it and the Chemical Ideas book isn't so helpful . Any advice?

    Thanks
    A copolymer consists of 2 monomers. There are certain types of copolymer.
    The monomers would have to be distinct enough for you to tell apart.
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    (Original post by joostan)
    A copolymer consists of 2 monomers. There are certain types of copolymer.
    The monomers would have to be distinct enough for you to tell apart.
    But how do I know which ALKENES were used to create a given copolymer?
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    (Original post by krisshP)
    But how do I know which ALKENES were used to create a given copolymer?
    The alkenes are the monomers . . . Except that the double bond has been broken in the polymerization reaction.
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    (Original post by joostan)
    The alkenes are the monomers . . . Except that the double bond has been broken in the polymerization reaction.
    See the attachment
    Name:  copolymers.jpg
Views: 54
Size:  439.2 KB

    This question is bugging me. Can you please help me with it? The answer is but-1-ene and propene. But I need to actually understand why??? I know that if the chain has repeating monomers. So if you take out one monomer, you should just see the 2 alkenes used to make the copolymer. But for some reason when I take out a single monomer and draw it, I get stuck since I get a wrong structure.
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    (Original post by krisshP)
    See the attachment
    Name:  copolymers.jpg
Views: 54
Size:  439.2 KB

    This question is bugging me. Can you please help me with it? The answer is but-1-ene and propene. But I need to actually understand why??? I know that if the chain has repeating monomers. So if you take out one monomer, you should just see the 2 alkenes used to make the copolymer. But for some reason when I take out a single monomer and draw it, I get stuck since I get a wrong structure.
    Start by drawing out the ethyl and methyl groups completely, it should clarify where the propene and butene come from.
    EDIT: Don't let the bend in the chain confuse you - its still a straight chain monomer.
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    (Original post by joostan)
    Start by drawing out the ethyl and methyl groups completely, it should clarify where the propene and butene come from.
    EDIT: Don't let the bend in the chain confuse you - its still a straight chain monomer.
    I did that and then the rest looked easy.

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    (Original post by krisshP)
    I did that and then the rest looked easy.

    Thanks
    No problem
 
 
 
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