Dear forum members.
I have been having problems with the HYDROGEL polymerization. Do you think it is necessary to fill up the vacuum chamber with nitrogen after degassing?. So far I was not doing it and gels were polymerizing OK but with inconsistent results.
I would like to know if there is a clear and consistent way of getting HYDROGELS. Maybe it has to do with the reagents, I am using homemade 16% PFA and the rest of the reagents are commercial ones.
Thanks in advance, any suggestion would be greatly appreciated.