On the microemulsion polymerization of butyl acrylate in the presence of unsaturated galacturonides

Publisher Website
Google Scholar
Abstract
The oil-in-water microemulsion polymerizations of butyl acrylate initiated by water (ammonium peroxodisulfate, APS)- and oil (2,2'-azobisisobutyronitrile, AIBN)-soluble radical initiators in the presence of an unsaturated galacturonides (galacturonic acid in H and K forms - UGH and UGK) were investigated. The polymerizations of these transparent microemulsions, monitored by DLS, gravimetry, and dilatometry, produce stable, bluish polymer microparticles with particle diameters from 23 to 64 nm, depending on the galacturonide and initiator contents. The addition of both galacturonides led to a decrease in the polymerization rate and the decrease was more pronounced with UGH. The addition of UGH increased the particle number and decreased the weight-average molecular weight. UGK decreased both the particle number and the weight-average molecular weight. The uronic acid content and infrared spectral measurements confirmed the presence of carbohydrates in the polymer chains.

This publication has 7 references indexed in Scilit: