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Rheokinetics of polymerization of N‐laurylmethacrylate
Author(s) -
Kale L. T.,
O'Driscoll K. F.
Publication year - 1982
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760220703
Subject(s) - materials science , polymerization , rheometer , rheology , polymer , monomer , radical polymerization , polymer chemistry , diffraction , composite material , thermodynamics , optics , physics
Abstract The free radical polymerization of n‐laurylmethacrylate has been studied using a combination of rheological and kinetic methods. In addition to classical dilatometry, the extent of reaction of a polymerization was followed in a cone and plate rheometer by measuring the change in the diffraction of a laser beam shone through the polymerizing sample parallel to the plate of the rheometer. The change in diffraction was caused by the change in index of refraction of the monomer becoming polymer, which was related to the extent of reaction. Simultaneous measurements of loss and storage moduli and dynamic viscosity at 1 Hz provided the data necessary for correlating changes in the kinetics with changes in the rheology of the polymerizing system.