Biomedical Engineering Reference
In-Depth Information
Fig. 5
Chemical structures of
a
poly(ethylene oxide),
b
poly(ethyleneglycol) diacrylate,
c
poly(vinyl alcohol),
d
poly(propylene fumerate-co-ethylene glycol, and
e
poly(ethylene
glycol-fumerate)
explored to impart these properties on other materials by copolymerizing
with PEG [236].
PEO hydrogels are created by
γ
-radiation or by UV photopolymerization
when the PEO precursor contains acrylate termini such as PEGDA where
the acrylate group functions as the crosslinkable moiety. Triblock copolymer
of poly(ethylene oxide) and poly(propylene oxide), commercially known as
