Research Article

Biodegradable In Situ Gel-Forming Controlled Drug Delivery System Based on Thermosensitive Poly( -caprolactone)-Poly(ethylene glycol)-Poly( -caprolactone) Hydrogel

Table 4

Sol-gel transition temperatures of different PCL-PEG-PCL copolymers (°C).

Conc.
(w/v %)
copolymer 1
microwave 25 min
copolymer 1
microwave 20 min
copolymer 1
microwave 15 min
copolymer 1
reactor
copolymer 2
reactor
copolymer 1
two-necked flask
copolymer 2
two-necked flask

15% No Gel No Gel
20% No Gel
25%
30%