Kinetics of fast (RIM) urethane polymerization

E. B. Richter; C. W. Macosko

doi:10.1002/pen.760181308

Kinetics of fast (RIM) urethane polymerization

E. B. Richter, C. W. Macosko

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Abstract

The kinetics of the dibutyltin dilaurate catalyzed bulk polymerization of 4,4′‐diphenylmethane diisocyanate (MDI) with poly‐ϵ‐caprolactone were studied by infared spectroscopy and adiabatic temperature rise. The overall reaction order was found to change from 3/2 to 2 with increasing temperature. At temperatures above 80°C, the order with respect to catalyst was found to decrease with concentration from 1 to 1/2. The results were consistent with a Michaelis Menten type kinetic scheme.

Original language	English (US)
Pages (from-to)	1012-1018
Number of pages	7
Journal	Polymer Engineering & Science
Volume	18
Issue number	13
DOIs	https://doi.org/10.1002/pen.760181308
State	Published - Oct 1978
Externally published	Yes

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title = "Kinetics of fast (RIM) urethane polymerization",

abstract = "The kinetics of the dibutyltin dilaurate catalyzed bulk polymerization of 4,4′‐diphenylmethane diisocyanate (MDI) with poly‐ϵ‐caprolactone were studied by infared spectroscopy and adiabatic temperature rise. The overall reaction order was found to change from 3/2 to 2 with increasing temperature. At temperatures above 80°C, the order with respect to catalyst was found to decrease with concentration from 1 to 1/2. The results were consistent with a Michaelis Menten type kinetic scheme.",

author = "Richter, {E. B.} and Macosko, {C. W.}",

year = "1978",

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AU - Macosko, C. W.

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N2 - The kinetics of the dibutyltin dilaurate catalyzed bulk polymerization of 4,4′‐diphenylmethane diisocyanate (MDI) with poly‐ϵ‐caprolactone were studied by infared spectroscopy and adiabatic temperature rise. The overall reaction order was found to change from 3/2 to 2 with increasing temperature. At temperatures above 80°C, the order with respect to catalyst was found to decrease with concentration from 1 to 1/2. The results were consistent with a Michaelis Menten type kinetic scheme.

AB - The kinetics of the dibutyltin dilaurate catalyzed bulk polymerization of 4,4′‐diphenylmethane diisocyanate (MDI) with poly‐ϵ‐caprolactone were studied by infared spectroscopy and adiabatic temperature rise. The overall reaction order was found to change from 3/2 to 2 with increasing temperature. At temperatures above 80°C, the order with respect to catalyst was found to decrease with concentration from 1 to 1/2. The results were consistent with a Michaelis Menten type kinetic scheme.

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Kinetics of fast (RIM) urethane polymerization

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