Colloidal Forces Involved in Steric Stabilization of Latex

聚合物吸附对模型胶体颗粒的影响将使用全内反射显微镜（TIRM）来检测颗粒动态相互作用和小角光散射（SALS）来确定絮凝率。 基于两个测量的预测之间的比较将作出，并将获得有关粒子间力的基本方面。 TIRM是作者以前开发的。 将在动态条件下的TIRM测量结果与在平衡条件下使用原子力显微镜（ATM）进行的测量结果进行比较。 如果成功的话，这项研究将提高对货车德瓦尔斯力和分散力的基本理解，并立即应用于评估胶体稳定性和生产涂有聚合物大分子的胶体颗粒。

The effect of polymer adsorbtion on model colloid particles will be investigated using total internal reflection microscopy (TIRM) to detect particle dynamic interactions and small-angle light scattering (SALS) to determine the flocculation rate. Comparison between the predictions based on the two measurements will be made, and fundamental aspects concerning interparticle forces will be obtained. TIRM was previously developed by the author. The TIRM measurements in dynamic conditions will be compared to those performed with the atomic force microscope (ATM) in equilibrium conditions. If successful, the research will improve fundamental understanding of the van der Waals and dispersion forces, with immediate application to evaluation of colloidal stability and production of colloidal particles coated with polymeric macromolecules.