The kinetics of the reaction of isophorone di-isocyanate with mono-alcohols

Rheo-kinetic evaluation on the formation of urethane networks based on hydroxyl-terminated polybutadiene

“…Further, IPDI mol- ecule can exist in two configurations, viz: cis and trans. 17,18 The cis and trans forms in the commercial IPDI are estimated to be in the ratio of 72 : 28. 17,18 The isocyanate groups in the cis and trans forms differ in their reactivity.…”

“…17,18 The cis and trans forms in the commercial IPDI are estimated to be in the ratio of 72 : 28. 17,18 The isocyanate groups in the cis and trans forms differ in their reactivity. 17,18 It is well known that the isocyanate groups in the ortho position of TDI molecule are less reactive than the one in the para position due to steric hindrance at the ortho position caused by the 1-methyl group.…”

13C-NMR spectroscopy study of polyurethane obtained from azide hydroxyl-terminated polymer cured with isophorone diisocyanate (IPDI)

“…It exists as two isomers, cis (Z) and trans (E), first identified by gas chromatography. 5 Previous studies 6-12 by x-ray and 1 H-NMR spectroscopy showed that the cis form is the major isomer present at 75%, while the trans form is present at 25%.…”

Fluoropolyethers end-capped by polar functional groups. I. Kinetic approach to the reaction of hydroxy-terminated fluoropolyethers with cycloalyphatic and aromatic diisocyanates

“…[23][24][25] The effect of molecular organization of reagents (autoassociation of an alcohol) can also be of great importance for catalytic reactions of urethane formation. 26 -29 Reegen and Frisch 30 found a sharp increase in the rate of reaction between phenyl isocyanate and 1-methoxy-2-propanol in toluene at 30°C with DBTDL (1 ϫ 10 Ϫ4 mol L Ϫ1 ) due to the action of the increasing urethane group concentration.…”