Cross-linked polymer.?

This experiment which purposed to cross-linked a linear polymer and to observe changes in physical properties of produced gel as a result of the cross-linking.





In this experiment, the polyvinyl alcohol (PVA) is cross-linked by a hydrated borax molecule.





There are six reaction take place.


1- (PVA with Mn=70000, Concentration=5%, V=10 ml) mix with (Borax, Concentration 5%, V=1.0ml).





2- (PVA with Mn=70000, Concentration=5%, V=10 ml) mix with (Borax, Concentration 10%, V=1.0ml).





3. (PVA with Mn=70000, Concentration=10%, V=10 ml) mix with (Borax, Concentration 5%, V=1.0ml).





4. (PVA with Mn=31000, Concentration=5%, V=10 ml) mix with (Borax, Concentration 5%, V=1.0ml).





5. (PVA with Mn=31000, Concentration=5%, V=10 ml) mix with (Borax, Concentration 10%, V=1.0ml).





6. (PVA with Mn=70000, Concentration=5%, V=10 ml) mix with (Borax, Concentration 10%, V=1.0ml).





Gel is produced.


Do Mn and concentration of PVA and Borax affect the gel produced? How?


Plz someone help me..

Cross-linked polymer.?
You haven't listed your results. You need to do the tests to get the information. The only one that can answer these questions is you. It would probably help if you did the work, then you might understand whats happening.