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Kinetics and flow of diallyl phthalate resins
Author(s) -
Sundstrom Donald W.,
English Michael F.
Publication year - 1978
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.760180908
Subject(s) - rheology , materials science , arrhenius equation , curing (chemistry) , thermosetting polymer , dynamic mechanical analysis , kinetics , differential scanning calorimetry , rheometry , gel point , composite material , elasticity (physics) , thermodynamics , polymer , polymer chemistry , activation energy , chemistry , physics , quantum mechanics
The analysis of molding operations for thermosetting polymers requires knowledge of the rheology and reaction rates of the materials. The purpose of this research was to measure kinetic and rheological data on diallyl phthalate resins and to integrate these results into models describing the flow behavior. The chemical kinetics of the curing reactions were derived from calorimetric measurements taken with a differential scanning calorimeter. The rheological data were measured with a mechanical spectrometer equipped with eccentric rotating discs. A model based on the theory of ideal rubber elasticity was used to correlate the elastic storage modulus with reaction time and temperature. For the region below the gel point, the dynamic viscosity exhibited a power law dependence on angular frequency and an Arrhenius dependence on temperature.