Ruth Naomi Mariae Rosales

6 Questions 1 Answers 0 Followers

Questions related from Ruth Naomi Mariae Rosales

What other factors can affect failure of hydrogels to form?

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...

04 April 2015 4,025 4 View

Are you familiar with the Methodology for polyvinyl alcohol -borax hydrogels?

Good day. My freeze-thaw PVA hydrogels did not work out so I am currently looking onto using borax as a crosslinker. Does anyone have a methodology for this? I only have limited resources and I...

04 April 2015 6,942 2 View

Are you familiar with a freeze thaw method to make hydrogels?

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...

03 March 2015 1,912 8 View

Does anyone have experience with hydrogel synthesis using liquid nitrogen?

Would synthesis of polyvinyl alcohol hydrogels be achieved using flash freezing with liquid nitrogen? (freeze-thaw method)

03 March 2015 2,662 2 View

Can sebacic acid, lactic acid and acetic anhydride be used as a crosslinker?

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,...

11 November 2014 2,016 4 View

What is the method of synthesis of polyvinyl alcohol hydrogels with and without fillers/copolymers?

I am currently doing a research on synthesis and characterization of PVA-cellulose and PVA-rice husk ash hydrogels. Can anybody give me an idea on the methodology for synthesis? Thank you. Any...

08 August 2014 7,435 4 View