PEG is known to be hydrogel polymers, but they degrade in water without addition of other chemicals. UV polymerized PEG hydrogel will eventually disintegrate in water, can we still call this a permanent hydrogel then?
Hi Kim, PEG is not a hydrogel. it is a polymer or oligomers depending on numbers of molecular weight . Hydrogel are basically consisting of elastic network systems that have ability to hold large amount of water or biological fluids in the interstitial space of the network and retain their network structure after swelling. you can make PEG hydrogel by chemical or physical crosslinking with other chemical agents. you can not make hydrogel from PEG with water.
Hi Kim, PEG is not a hydrogel. it is a polymer or oligomers depending on numbers of molecular weight . Hydrogel are basically consisting of elastic network systems that have ability to hold large amount of water or biological fluids in the interstitial space of the network and retain their network structure after swelling. you can make PEG hydrogel by chemical or physical crosslinking with other chemical agents. you can not make hydrogel from PEG with water.
Yes I agree with Ajoy, Hydrogel consisting with three dimensional crosslink net work structure
A swollen polymer is not necessarily a hydrogel, even if it becomes swollen in water. I agree with Ajoy that to be a hydrogel it needs to have a network. There are also some hydrogels in the literature which are designed to degrade over time. They degrade though, not dissolve which is what you are describing.
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