Study viscoelasticity of ultrathin poly(oligo(ethylene glycol) methacrylate) brushes by a quartz crystal microbalance with dissipation
Study viscoelasticity of ultrathin poly(oligo(ethylene glycol) methacrylate) brushes by a quartz crystal microbalance with dissipation
复制标题
通过耗散石英晶体微天平研究超薄聚（低聚（乙二醇）甲基丙烯酸酯）刷的粘弹性
DOI：
10.1021/la703661z
复制
发表时间：
2008-06-17
期刊：
影响因子：
3.9
通讯作者：
Ma, Hongwei
中科院分区：
文献类型：
--
作者：
Fu, Long;Chen, Xinan;Ma, Hongwei
超薄聚合物刷在自然和人工系统中发挥着重要作用。为了更好地理解和利用它们独特的行为，特征化是一项基本但并非微不足道的任务。在本文中，我们证明了石英晶体微天平与耗散（QCM-D）可以应用于研究聚（寡（乙二醇）甲基丙烯酸酯）刷。首先，我们确定了四个耗散/频率变化和厚度变化之间的线性关系，这是测量QCM-D和椭圆偏振，分别。接下来，我们从Voigt模型出发推导出一组方程，以进一步提取聚（OEGMA）刷的粘弹性（
Ultrathin polymer brushes play important roles in natural and artificial systems. To better understand and utilize their unique behaviors, characterization is a fundamental, but not trivial, task. In this paper, we demonstrated that the quartz crystal microbalance with dissipation (QCM-D) could be applied to study ultrathin poly(oligo(ethylene glycol) methacrylate) brushes. First, we identified four linear relations between dissipation/frequency changes and thickness changes, which were measured by QCM-D and ellipsometry, respectively. Next, we derived a set of equations starting from the Voigt model to further extract viscoelasticity of poly(OEGMA) brushes (