New biocompatible thermogelling copolymers containing ethylene-butylene segments exhibiting very low gelation concentrations†
Abstract
We present a new thermogelling poly(ether urethane) consisting of poly(ethylene-butylene) (PEB), poly(ethylene glycol) (PEG), and poly(propylene glycol) (PPG) segments. Their aqueous solutions exhibited thermogelling behavior at critical gelation concentrations (CGC) ranging from 1.7 to 11.9 wt%. The composition and structural information of the