Diffusive Transport in Porous Polymers

大分子从多孔聚合物载体的受控释放是通过多孔介质扩散的一个例子；完全了解这些系统的行为是不可能的。将采取微观结构方法来解决这个问题，目的是阐明决定多孔网络中传输速率的潜在物理机制。该研究涉及一种获取多孔聚合物器件详细微观结构数据的系统。详细的理解允许制定多孔网络的物理现实模型；它还将提供一种检验初步假设的方法。释放研究也进行了检查动力学大分子释放的聚合物装置。该项目的主要推力是对物理机制的探索性实验。

The controlled release of macromolecules from a porous polymer carrier is an example of diffusion through a porous medium; a complete understanding of the behavior of these systems in not available. A microstructural approach to the problem will be taken with the goal of elucidating the underlying physical mechanisms which determine the rate of transport in the porous network. The research involves a system for acquiring detailed microstructural data on the porous polymer devices. A detailed understanding permits the formulation of physically realistic models of the porous network; it will also provide a method for testing preliminary hypotheses. Release studies are also conducted for examining the kinetics of macromolecular release from the polymer devices. The major thrust of the project is exploratory experimentation on the physical mechanisms.