Radical bulk polymerization ofN‐vinylcaprolactam

摘要

AbstractBulk radical polymerization ofN‐vinylcaprolactam was studied at temperatures between 60 and 120°C. with different initiators. Satisfactory results were obtained with azobisisobutyronitrile,tert‐butyl perbenzoate, andtert‐butyl peroxide as initiators. The polymerization reaction ofN‐vinylcaprolactam with these initiators is first order with respect to the monomer and 0.5 order with respect to the initiator. A linearity of the kinetic curves up to high conversions was observed. The cause of this behavior is a feeble gel effect, which also induces an increase of the molecular weight during polyme