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Compare the properties of PMMA and glass. Why is the Tg of PTFE higher than that...

  1. Compare the properties of PMMA and glass.
  2. Why is the Tg of PTFE higher than that of FEP?
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Answer #1

Answer:- PMMA is Polymethyl methacrylate . It is a synthetic resin produced from polymerization of methyl methacrylate.

If we compare it with glass, we can say :- PMMA scratches more easily, about as clear , higher impact strength , less environmentally stable, lighter(less dense) ,less resistant to solvents.

The Tg of PTFE (Polytetrafluoroethylene) is higher than that of FEP( Fluorinated ethylene propylene) because the structure of PTFE is regular. The large pendant group in FEP destroys this regularity.

I hope it will help you.

Thanks.

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