N-vinylcaprolactam is a vinyl compound and is a lactam compound, and is an important intermediate for the synthesis of poly-N-vinylcaprolactam.
A series of poly-N-vinylcaprolactam (PVCL) temperature-sensitive microgels were synthesized by microwave soap-free emulsion polymerization with N-vinylcaprolactam (NVCL) as monomer and by changing the amount of initiator and crosslinker. . The structure, morphology and properties were characterized by infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and laser particle size analyzer (DLS).
The results show:
The target product was successfully synthesized, and the particle morphology was spherically monodispersed. The amount of initiator and crosslinker had little effect on the low critical phase transition temperature (LCST) of PVCL microgel, but had a great influence on the particle size and particle swelling ability. When the amount of the crosslinking agent is 5% and the amount of the initiator is 1.5%, the microgel obtained has better comprehensive performance.
After polymerizing or copolymerizing N-vinylcaprolactam into a polymer compound having a certain structure, a certain composition and a certain molecular weight, it can be widely used in industry, especially a poly-N-vinylcaprolactam (PVCL) series polymer in biology and medicine. Materials and household chemicals and other fields have extremely broad application prospects.