Premium
Optimal temperature profiles for methylmethacrylate polymerization in the presence of end point constraints
Author(s) -
Vaid Nitin R.,
Gupta Santosh K.
Publication year - 1991
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.760312404
Subject(s) - maxima , polymerization , monomer , materials science , chain (unit) , point (geometry) , kinetic energy , thermodynamics , end point , polymer chemistry , mathematics , polymer , composite material , geometry , physics , classical mechanics , art , astronomy , performance art , art history
Abstract Optimal temperature histories have been obtained for methylmethacrylate polymerization using a kinetic model incorporating gel and glass effects. The minimum end time problem has been studied, with end point constraints on monomer conversion and the number average chain length, μ n . The optimization algorithm used is efficient and easy to use. It is found that the optimal temperature histories obtained when the desired chain length lies beyond the maxima in the μ n vs. time plot differ qualitatively and significantly from those obtained when the desired μ n lies before the maxima.