The requirement to consider the whole lifecycle of products including disassembly and recycling has resulted in considerable interest debond-on-demand adhesives. These smart materials undergo controlled loss adhesive strength when subject a specific stimulus. This paper reports design crosslinked polyurethane (PU) which incorporates fluoride responsive degradable group. PU (CLP) showed 28 % inc...

Presenting a suitable hydrogel for water shutoff in Iranian oil field is based on gelation time and gel strength. Rheological behavior of was the main purpose this research. To determine time, thermal stability strength plan bottle tests were conducted by using central composite design method with two factors. The hydrogels composed AN125VLM chromium triacetate as copolymer crosslinker, respect...

Novel non-ionic hydrogels were synthesized by radical homopolymerization of N-vinyl-2-pyrrolidone (VP) or by radical copolymerization of VP with methylacrylate (MA). A macroinimer (MIM) was used as a crosslinker and initiator, as well. The percentage of mass swelling ratios (S(M)), the molecular weight between crosslinks (M(c)) and Young's modulus of the hydrogels were investigated. The hydroge...