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Temperature-responsive hydrogels have been widely developed for biomedical applications. In this study, 4-benzyloxy-ε-caprolactone (CL-OBn) was synthesized and the subsequent ring opening polymerization (ROP) of ε-caprolactone (CL) and CL-OBn monomers was performed by using the hydroxyl group of methoxy polyethylene glycol (MPEG) in the presence of HCl·Et2O as a monomer activator. MPEG-b-poly (ε-caprolactone)...
The ring-opening polymerization of ɛ-caprolactone (CL) was induced by using polypropylene glycol (PPG) as an initiator in the presence of the monomer activator HCl·Et 2 O to synthesize triblock copolymers composed of PPG and poly(ɛ-caprolactone) (PCL). The degree of CL conversion and the molecular weight of PCL increased linearly with the polymerization time or with the feed ratio of CL to...
The critical gelation concentration of polyethylene gels formed in decalin by self-nucleation was studied as a function of the gelation temperature, the polymer dissolution temperature, and the time at the dissolution temperature. A comparison was also made with gels formed after cooling from a high temperature. The morphology of the various gels was examined to elucidate the gelation behavior....
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