Posted by ace on October 24, 2003, at 0:12:50
In reply to Re: study help with chemistry! more!, posted by Larry Hoover on October 23, 2003, at 22:51:28
> > Any chem scholars out there!?
>
> Ya, but this one shouldn't answer posts half an hour after he's taken his sleep meds.That's a lesson for you!
> > Can anyone recommend me a good site on polymerization- I have searched the net heaps but am yet to find one!
>
> http://www.psrc.usm.edu/macrog/synth.htm
>
> > Condensation polymers are what I'm focusing on most...
>
> Condensation polymers can also yield other H-X byproducts other than water, like HCl. I guess polymer chemists expanded the term used by organic chemists like me.Methanol is 'condensed out' too sometimes?
> > BTW, in addition (chain-growth) polymerization only one off the pi bonds (of the double bond) is broken...right? This holds true for EVERY addition polymer?
> >
> > Ace.
>
> An addition polymer is simply a polymer where the whole monomer molecule enters the product.So, as opposed to condensation polymers, we have no loss of ANY atoms? And if an aromatic ring is involved in the polymerization it remains intact...ie it doesn't form an aliphatic chain?
The benzene ring just 'hangs of' another chain ?(assuming the polymer is made of 2 monomers)Not all monomers that polymerize have pi bonds. The monomer that goes into nylon doesn't for example.
> Lar
Thanks mate!,
Ace.
poster:ace
thread:272472
URL: http://www.dr-bob.org/babble/social/20031020/msgs/272514.html