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Topic: What is the monomer unit of the polymer called nylon?  (Read 8060 times)

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Offline theanonymous

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What is the monomer unit of the polymer called nylon?
« on: March 20, 2013, 07:30:20 PM »


I got part B and part C wrong even though I googled both of them -.-
Here is the youtube video (which doesn't really help): http://www.youtube.com/watch?v=y479OXBzCBQ&feature=related
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Offline discodermolide

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Re: What is the monomer unit of the polymer called nylon?
« Reply #1 on: March 20, 2013, 10:08:57 PM »
For B you have drawn a diamine, the question asks for amide groups.
For C I found polyglycolide on Google as well as polyglycolic acid.
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Offline theanonymous

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Re: What is the monomer unit of the polymer called nylon?
« Reply #2 on: March 21, 2013, 12:04:19 AM »
Quote from: discodermolide on March 20, 2013, 10:08:57 PM
For B you have drawn a diamine, the question asks for amide groups.
For C I found polyglycolide on Google as well as polyglycolic acid.

NC(=O)CCCCC(N)=O

^ I drew this and it still marked it as incorrect :(
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Offline discodermolide

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Re: What is the monomer unit of the polymer called nylon?
« Reply #3 on: March 21, 2013, 12:13:05 AM »
Your chain is too short.

CC(NCCCCCCNC(C)=O)=O
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Offline theanonymous

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Re: What is the monomer unit of the polymer called nylon?
« Reply #4 on: March 21, 2013, 12:16:08 AM »
Quote from: discodermolide on March 21, 2013, 12:13:05 AM
Your chain is too short.

CC(NCCCCCCNC(C)=O)=O

Wait but isn't that supposed to be for A though? Or is that for B?
Because A is supposed to be a super long structure
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Offline discodermolide

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Re: What is the monomer unit of the polymer called nylon?
« Reply #5 on: March 21, 2013, 12:20:07 AM »
That is for B,
For A just draw in the other part for two units.
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Offline theanonymous

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Re: What is the monomer unit of the polymer called nylon?
« Reply #6 on: March 21, 2013, 12:22:11 AM »
Quote from: discodermolide on March 21, 2013, 12:20:07 AM
That is for B,
For A just draw in the other part for two units.

You mean draw the combination of 1,6-diaminohexane and hexanedioic?
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Offline discodermolide

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Re: What is the monomer unit of the polymer called nylon?
« Reply #7 on: March 21, 2013, 12:33:05 AM »
yes
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Offline theanonymous

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Re: What is the monomer unit of the polymer called nylon?
« Reply #8 on: March 21, 2013, 12:38:11 AM »
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Offline discodermolide

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Re: What is the monomer unit of the polymer called nylon?
« Reply #9 on: March 21, 2013, 12:54:19 AM »
No you have an extra oxygen atom in there. And the CH3 at the left should be an OH.
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Offline theanonymous

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Re: What is the monomer unit of the polymer called nylon?
« Reply #10 on: March 21, 2013, 12:57:05 AM »
Quote from: discodermolide on March 21, 2013, 12:54:19 AM
No you have an extra oxygen atom in there. And the CH3 at the left should be an OH.

NCCCCCCNCC(=O)CCCCC(=O)O

That?
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Offline theanonymous

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Re: What is the monomer unit of the polymer called nylon?
« Reply #11 on: March 21, 2013, 01:02:09 AM »
The structure I just drew is incorrect :(

2/3 submissions used...
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Offline discodermolide

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Re: What is the monomer unit of the polymer called nylon?
« Reply #12 on: March 21, 2013, 01:05:13 AM »
No this.
NCCCCCCNC(CCCCC(O)=O)=O
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Offline theanonymous

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Re: What is the monomer unit of the polymer called nylon?
« Reply #13 on: March 21, 2013, 01:14:58 AM »
Quote from: discodermolide on March 21, 2013, 01:05:13 AM
No this.
NCCCCCCNC(CCCCC(O)=O)=O

Awesome! :D thanks!!!

I have one more quick question - what exactly is product A for the question below? I haven't submitted this structure yet (which is why the X is grey) but I have one more submission left:



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Offline discodermolide

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Re: What is the monomer unit of the polymer called nylon?
« Reply #14 on: March 21, 2013, 01:20:29 AM »
This is an ester hydrolysis with sodium hydroxide

OC(C(C)C)=O
and
OC1CCCCC1

After H3O+ treatment they are probably not deuterated.
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