Preparation and Characterization of Monodisperse Poly(amic acid) Particles by Stabilizers

• Main Authors: Jun-Yi Wu, 吳俊逸
• Other Authors: Keh-Ying Hsu
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/45719075352215568368

碩士 === 中原大學 === 化學工程研究所 === 95 === In this study, poly(amic acid) particles were prepared by dispersion polymerization and precipitation polymerization. Monomer diamine and stabilizer were dissolved in polymerization medium then slowly added Monomer dianhydride with different kinds stabilizer of then disperse homogeneously and polymerization in homogenizer at constant temperature. After completely polymerization, poly(amic acid) particles solution can be obtained。 By changing the kinds stabilize and reaction condition, the effects on the particles size、morphology and thermal properties were investigated. The stable polymerization system to prepare monodisperse poly(amic acid) particles can be found from this study。 From the experimental results, we can get better particle morphology with uniform by using SDS and PVP as stabilizer ; the diameter of poly(amic acid) particles increased with increasing the total amount of dianhydride monomer and diamine monomer. The particle diameter of poly(amic acid) particles prepared under various stabilizer and reaction conditions were in the range between 0.05μm to 1.6 μm。