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Offline aznspiker516

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quick question about monomers
« on: January 02, 2007, 11:07:02 PM »
Is a monomer basically the smallest repeating portion of a polymer?

Offline Yggdrasil

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Re: quick question about monomers
« Reply #1 on: January 02, 2007, 11:10:51 PM »
Yes.

Offline aznspiker516

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Re: quick question about monomers
« Reply #2 on: January 02, 2007, 11:14:19 PM »
Oh thanks  ;D by the way is CH=CH2 floroethylene?  if not what would this compound be called?  ???
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« Last Edit: January 02, 2007, 11:32:20 PM by aznspiker516 »

Offline Yggdrasil

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Re: quick question about monomers
« Reply #3 on: January 02, 2007, 11:40:19 PM »
Yes, that compound would be fluoroethylene.

Offline aznspiker516

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Re: quick question about monomers
« Reply #4 on: January 02, 2007, 11:47:28 PM »
oh thanks  ;D i hav another question...sorry about asking so many questions  :-[ :-X i was wonderin what the monomer(s) of this polymer would be  ???

I think its the monomer that i attached but i dont know where the fourth bond for the last carbon atom in the chain goes  :-\  ???

Offline Yggdrasil

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Re: quick question about monomers
« Reply #5 on: January 03, 2007, 12:49:45 AM »
There is something very wrong with that structure (hint: how many bonds can carbon have?).  Often, polymers are formed in condensation reactions, so you may have two extra hydrogens and one extra oxygen in your monomer.

Offline aznspiker516

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Re: quick question about monomers
« Reply #6 on: January 03, 2007, 12:58:30 AM »
Oh I didn't notice that  :-X thanks for catching my error. hmm...so maybe it looks something like this? What would this be called?  ???  and how would you know if it would be a condensation reaction or not? i saw the picture in the link you showed me but i dont see the same resemblance in this polymer :-X can you just assume it if there are hydrogen and oxygen atoms in the polymer?

Offline Ψ×Ψ

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Re: quick question about monomers
« Reply #7 on: January 03, 2007, 01:08:53 AM »
hint: what two functional groups react to form ester linkages?

Offline aznspiker516

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Re: quick question about monomers
« Reply #8 on: January 03, 2007, 01:14:49 AM »
Oh! :o carboxylic acids and alcohols Thanks ?*?  ;D now about my attached pic in my previous post is that right? and what would that b called?  ???

Offline enahs

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Re: quick question about monomers
« Reply #9 on: January 03, 2007, 01:40:37 AM »
That would be called: allen-1-one
Use the information you just learned from Psi*Psi.

Offline aznspiker516

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Re: quick question about monomers
« Reply #10 on: January 03, 2007, 01:57:25 AM »
hmm using ?*?'s information i've come up with this. Is this right? if so, what would the name be? i have no idea since it has 2 different functional groups  ??? my guess would be 1-propanoloic acid but it doesn't  sound right  :-[
« Last Edit: January 03, 2007, 01:17:59 PM by aznspiker516 »

Offline aznspiker516

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Re: quick question about monomers
« Reply #11 on: January 03, 2007, 01:43:59 PM »
would that be pyruvic acid?  ??? i googled the molecular formula C3O3H4 and pyruvic acid came up

EDIT: Never mind it has the same molecular formula but different structure  :-[ :-X :'(

Offline Yggdrasil

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Re: quick question about monomers
« Reply #12 on: January 03, 2007, 02:25:27 PM »
You are very close to the right answer.  See what product you get when you react your guess polymerizes.

Offline aznspiker516

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Re: quick question about monomers
« Reply #13 on: January 03, 2007, 04:43:27 PM »
umm would this be the product?

Offline constant thinker

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Re: quick question about monomers
« Reply #14 on: January 04, 2007, 07:31:22 PM »
You may want to read about esterification.
http://www.chemguide.co.uk/physical/catalysis/esterify.html

That website looks pretty easy to understand and most relevant to your situation. Keep in mind though, that the reaction you want specifically doesn't involve an alcohol and carboxylic acid, but it will at least show you whats happening to a degree.
« Last Edit: January 04, 2007, 07:38:16 PM by constant thinker »
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