PEG derived hydrogel: A novel synthesis route under mild condition

PEG derived hydrogels were synthesized by a novel synthesis route under mild condition. First, we synthesized a soluble linear copolymer by amino-terminated polyethylene glycol ATPEG and Pyromellitic dianhydride (PMDA), named by p (ATPEG -co- PMDA). The copolymer with imide rings on the main chain can be soluble in most of solvents. Then, the imide-rings of the copolymer were open by amino groups of Butanediamine (BDA) under ambient condition to...