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Author Topic: Metal Atoms in Plasics Polymers  (Read 49 times)

RVM45

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Metal Atoms in Plasics Polymers
« on: July 27, 2009, 01:04:45 AM »
Does anyone know if there are any plastics that contain a metal atom or two in the Base unit?

I aked one of my instructors, who specialized in Plastics Technology; when I was going to trade school--and he said "No!"

But I'm not sure that he understood me. If he was correct; why hasn't someone tried some--just to see what kinda plastics result?

Or is there something about the nature on monomolecular polymers that rules out metal atoms in the mix?

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zzhuchila_clocker

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Re: Metal Atoms in Plasics Polymers
« Reply #1 on: July 28, 2009, 05:43:25 PM »
Do you mean metal atoms, or cations also?
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Douchermann

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Re: Metal Atoms in Plasics Polymers
« Reply #2 on: July 28, 2009, 07:31:04 PM »
He probably means something like cations, perhaps an iron styrene monomer, or zinc styrene monomer, polymerizing into a chain of of those. 

I've got a feeling that the metal ion would mess with the compounds ability to polymerize.  It might not also be practical, for example, there would be no benefit of a lead, mercury, or any heavy metal containing polymer as the possibility of heavy metal poisoning could rise in food grade plastics.

zzhuchila_clocker

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Re: Metal Atoms in Plasics Polymers
« Reply #3 on: July 28, 2009, 09:16:31 PM »
Quote
I've got a feeling that the metal ion would mess with the compounds ability to polymerize.
more likely, ions would mess with polymer's ability to be in plastic state. For example, sodium salt of carboxymethylcellulose - well known  is a polymer, but it's powder.

RVM, I'm sure it is possible to create a plastic with metal atoms, and maybe cations as well (chelated), but what special properties do you expect from them? Mechanical and chemical instability, easy losing its properties? (in the best case, "plastic becoming a powder after a hit or heat"). Besides, metals possess metal properties only if the atoms are linked to each other, but if they are suggregated, they become useless and lose all properties which characterise them as metal (maybe except paramagnetism). Ions do not possess any metal properties at all. Also some metals can form complexes, with CO, NH3 etc. For exaple, a plastic that changes its colour and physical properties in the presence of CO, NH3.  Ions also can form complexes, but they would make polymer exist in powder form i suppose
« Last Edit: July 28, 2009, 10:06:54 PM by zz-zhuchila »
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RVM45

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Re: Metal Atoms in Plasics Polymers
« Reply #4 on: August 04, 2009, 06:25:20 PM »
Well, its been awhile since I studied Chemistry. Never was Great; but I find that I've forgotten a few things that I used to know...

And that's one reason that I havent been posting lately--I've been downloading Chemistry Texts and studying them...

Never was good at ordered learning--I've jumped in in the middle--and working forward as well as back...

Anyway, ever since I read my first Chemistry book--I've always been fascinated by staring at molecular diagrams; and wondering what you'd get if you would substitute an X here; instead of a Y there...

While they may very well have better predictive methods today--its my understanding that many new plastics were formed by making rather small changes to the base group.

(Not just plastics--many antibiotics and designer drugs apparently were products of the "Let's just tweak it slightly--then test it"...)

And yeah, I was kind of hoping to get a sort of metal/plastic hybrid--whatever that might have turned out to be--with intermediate physical characteristics.

I've also put a lot of thought into the idea, that by all accounts, predicting the final shape of a complex protein is difficult to impossible. Substituting a single atom into a 3500 atom protein can sometimes change the whole folded structure drastically...

On the other hand, plastics are regular to the point of monotony.

Maybe some plastic like proteins could do some of the things living proteins do--but be easier to design; fabricate; and control...

Say, if you had a stable plastic (wouldn't rot at room temp) that could use a solution of glucose and oxygen for fuel--and do more or less what Actin/Myosin fibers do...

Anyway, that's some of the vague ideas that I play with...

.....RVM45      8) ;) 8)

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Sedit

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Re: Metal Atoms in Plasics Polymers
« Reply #5 on: August 04, 2009, 09:42:56 PM »


Look here, this appears to have some information of metal ions in polymer matrixes ect.
Imprint polymers


Also if you go to my site and use the search engine for Metals and polymers there are some other relavent links. Good luck.
http://127.0.0.1/sedit/
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