Acetic Acid → 2-Propenoic acid, 2-methyl-, polymer with methyl 2-methyl-2-propenoate and methyl 2-propenoate

Participants

Reaction Steps

A sol-gel formulation was prepared as follows. Glacial acetic acid (108.0 grams, 1.80 mol) was added dropwise to a previously prepared, stirred mixture of propyltrimethoxysilane (489.6 grams, 2.97 mol) and 3-glycidoxypropyltrimethoxysilane (122.4 grams, 0.518 mol), followed by the dropwise addition of 3-aminopropyltrimethoxysilane (49.6 grams, 0.277 mol). The acidified silanes were then hydrolyzed by the dropwise addition of excess water (312.0 grams, 17.3 mol). The following day, the clear solution was diluted to approximately 20 wt % solids by the dropwise addition of ethanol (1046 grams) and allowed to stir in a covered vessel for 1 week. DC-190 (16 grams) was subsequently added as a plasticizer, followed by the addition of lithium iodide (9.43 grams, 0.0704 mol) to provide a "sol-gel solution".

Provenance & Evidence