Estimation of distribution state of carboxyl groups within submicron-sized, carboxylated polymer particle with isothermal titration calorimeter.
A novel technique to estimate the distribution state of carboxyl groups within submicron-sized, carboxylated polymer particles was proposed. For the purpose, carboxyl groups in two kinds of butyl methacrylate-methacrylic acid copolymer emulsion, which were prepared by emulsion copolymerizations with different monomer addition methods, were titrated by isothermal titration calorimetry with an extremely small amount (ca. 2 mg) of the particles.
Graduate School of Science and Technology, Kobe University, Kobe, 657-8501 Japan ; Department of Chemical Science and Engineering, Faculty of Engineering, Kobe University, Kobe, 657-8501 Japan.
Masayoshi
M
Okubo
Toyoko
T
Suzuki
Naoki
N
Tsuda
Carboxyl group; Distribution; Emulsion copolymerization; Isothermal titration calorimetry; Particle