Article
Properties of Parially Cured Networks. 1. Curing Kinetics of a Model Network
Macromolecules
(1984)
Abstract
Model networks based on a,w-dihydroxypoly(propylene oxides) and tris(4-isocyanatophenyl)
thiophosphate were prepared. The curing kinetics were followed up to 97% conversion by measuring the
change in the infrared absorption intensity of the isocyanate stretching band at 2200-23?0 cm·1. The ovall reaction kinetics were found to be second order and are described well by a scheme cons1stmg _ of competitive
consecutive order reactions up to an extent of reaction of about 85% (the gel point). The observed incease in reaction rate at conversions greater than 85% is attributed to an increase in intramolecular reactions.
Keywords
- Properties,
- Partially Cured,
- Networks,
- Kinetics,
- Model Network
Disciplines
Publication Date
1984
Citation Information
William MacKnight. "Properties of Parially Cured Networks. 1. Curing Kinetics of a Model Network" Macromolecules Vol. 17 (1984) p. 1830 - 1834 Available at: http://works.bepress.com/william_macknight/117/