Controlled heterocoagulation of platelets and spheres.
Controlled heterocoagulation of platelets and spheres.
复制标题
血小板和球体的受控异凝。
作者：
D. Voorn;W. Ming;A. V. van Herk;P. Bomans;P. Frederik;P. Gasemjit;D. Johanssmann
我们报告了血小板和球体的可控异凝，导致形成胶体稳定的各向异性杂交颗粒。带阴离子的纳米级聚合物乳胶球形颗粒通过在带阳离子的六边形三水石薄片的两侧吸附单层球体而异凝在其表面。将乳胶颗粒在高于乳胶聚合物Tg的温度下退火，形成一层薄薄的聚合物层，覆盖在三水铝石薄片上。这种异聚方法使亲水性无机颗粒被聚合物乳液包封，形成各向异性杂化颗粒。
We report the controlled heterocoagulation of platelets and spheres, leading to the formation of colloidally stable, anisotropic hybrid particles. Anionically charged, nanosized polymer latex spherical particles were heterocoagulated on the surface of cationically charged hexagonal gibbsite platelets via the adsorption of a single layer of spheres onto both sides of the hexagonal platelets. The latex particles were annealed at a temperature above the Tg of the latex polymer, resulting in a thin polymer layer covering the gibbsite platelets. This heterocoagulation approach enabled the encapsulation of hydrophilic inorganic particles with polymer latexes and the formation of anisotropic hybrid particles.