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Questions related from Ruth Naomi Mariae Rosales
Hi. I was able to synthesize hydrogel by crosslinking polyvinyl alcohol with borax and by reinforcing with a filler (silica from rice husks and cellulose). One week after my synthesis, however,...
26 April 2015 8,640 3 View
Good day. I have been trying to synthesize PVA hydrogels through cyclic freeze thawing but unfortunately, only a viscous liquid is formed even after several cycles. To provide more details, I am...
07 April 2015 7,493 4 View
I am currently employing the freeze thaw method to synthesize 10% w/v polvinyl alcohol. However, I cannot get the solution to gel. It becomes a sticky paste instead. I am only using a refrigerator...
21 March 2015 5,098 9 View
I am currently sythesizing PVA hydrogels but I am having a hard time dissolving it. I am using a magnetic stirrer but most of the time, the solution becomes too thick that the magnetic stirrer...
21 March 2015 1,850 30 View
I am currently doing a study on poly vinyl alcohol - silica (from rice husk) hydrogels. Unfortunately, I cannot use glutaraldehyde as a crosslinker since it has been banned. In connection to this,...
15 November 2014 4,257 3 View