EFFECT OF METHACRYLIC ACID TO CORE-SHELL BASED STYRENEACRYLIC LATEX

Abstract

Poly (n-butylacrylate – styrene – methacrylic acid)/poly (styrene – methacrylic acid) was made by the core-shell two-stage continuous emulsion polymerization process at atmosphere pressure. The tests were proceeded to research how and what in shell methacrylic acid contents affect to latex and film properties. The results showed that methacrylic acid is very important for core-shell emulsion polymerization although its content is usually used very lower than n-butylacrylate and styrene contents. In shell methacrylic acid content 8% is the best content from testing results.