Methacrylic Acid → Methacrylic Acid

Participants

Reaction Conditions

Reaction Steps

A sample of butyl acrylate (BA), methyl methacrylate (MA), and methacrylic acid (MAA) polymer was prepared according to the procedure in Comparative Example 1 except that the monomer mixture consisted of 28.1 g MAA, 1915.9 g MMA, 216.0 g BA and 10.5 g SLS. In this case, a reaction vessel containing 1130 g deionized, buffered water and 4.0 g SLS was heated to 81° C. The remaining monomer mix, NaPS, as well as an additional 16.5 g of SLS were fed to the vessel after the initial addition of the mixture. Following neutralization, the resultant polymer had an average particle size of 317 nm with a particle size distribution ranging from 174 nm to 408 nm. The calculated Tg of this polymer was 70° C. In an assessment of printability, an ink containing 3.0% of this polymer was found to have acceptable performance in terms of low number of missing nozzles after 90 pages, but unacceptable performance in terms of wet-rub smear or resistance to smearing by highlighter pens.

Provenance & Evidence