Nature of Residual Unsaturation during Cure of Dimethacrylates Examined by CPPEMAS13C NMR and Simulation Using a Kinetic Gelation Model

G. P. Simon; P. E.M. Allen; D. J. Bennett; D. R.G. Allen Williams; E. H. Williams

doi:10.1021/ma00199a010

Nature of Residual Unsaturation during Cure of Dimethacrylates Examined by CPPEMAS¹³C NMR and Simulation Using a Kinetic Gelation Model

G. P. Simon, P. E.M. Allen, D. J. Bennett, D. R.G. Allen Williams, E. H. Williams

Engineering Office of the Dean

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Abstract

Residual monomer, constrained and unconstrained, and pendant double bonds have been assayed by CPPEMAS¹³C NMR during the postgelation stages of the cure of ethylene glycol dimethacrylate. A simulation using a kinetic gelation model fitted the experimental values well and was extended to make predictions about the pregelation stage and the size and distribution of monomer pools. Estimations of cure by DSC did not correlate linearly with residual unsaturation, though they did so during the cure of tetrakis(ethylene glycol) dimethacrylate.

Original language	English
Pages (from-to)	3555-3561
Number of pages	7
Journal	Macromolecules
Volume	22
Issue number	9
DOIs	https://doi.org/10.1021/ma00199a010
Publication status	Published - 1 Sept 1989

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10.1021/ma00199a010

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title = "Nature of Residual Unsaturation during Cure of Dimethacrylates Examined by CPPEMAS13C NMR and Simulation Using a Kinetic Gelation Model",

abstract = "Residual monomer, constrained and unconstrained, and pendant double bonds have been assayed by CPPEMAS13C NMR during the postgelation stages of the cure of ethylene glycol dimethacrylate. A simulation using a kinetic gelation model fitted the experimental values well and was extended to make predictions about the pregelation stage and the size and distribution of monomer pools. Estimations of cure by DSC did not correlate linearly with residual unsaturation, though they did so during the cure of tetrakis(ethylene glycol) dimethacrylate.",

author = "Simon, {G. P.} and Allen, {P. E.M.} and Bennett, {D. J.} and {Allen Williams}, {D. R.G.} and Williams, {E. H.}",

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AU - Allen, P. E.M.

AU - Bennett, D. J.

AU - Allen Williams, D. R.G.

AU - Williams, E. H.

PY - 1989/9/1

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N2 - Residual monomer, constrained and unconstrained, and pendant double bonds have been assayed by CPPEMAS13C NMR during the postgelation stages of the cure of ethylene glycol dimethacrylate. A simulation using a kinetic gelation model fitted the experimental values well and was extended to make predictions about the pregelation stage and the size and distribution of monomer pools. Estimations of cure by DSC did not correlate linearly with residual unsaturation, though they did so during the cure of tetrakis(ethylene glycol) dimethacrylate.

AB - Residual monomer, constrained and unconstrained, and pendant double bonds have been assayed by CPPEMAS13C NMR during the postgelation stages of the cure of ethylene glycol dimethacrylate. A simulation using a kinetic gelation model fitted the experimental values well and was extended to make predictions about the pregelation stage and the size and distribution of monomer pools. Estimations of cure by DSC did not correlate linearly with residual unsaturation, though they did so during the cure of tetrakis(ethylene glycol) dimethacrylate.

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U2 - 10.1021/ma00199a010

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IS - 9

ER -

Nature of Residual Unsaturation during Cure of Dimethacrylates Examined by CPPEMAS13C NMR and Simulation Using a Kinetic Gelation Model

Abstract

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Nature of Residual Unsaturation during Cure of Dimethacrylates Examined by CPPEMAS¹³C NMR and Simulation Using a Kinetic Gelation Model