Current Focus of Research
I study the structuring of complex polymeric materials under well defined experimental conditions. These include extreme conditions in time, pressure, temperature, and molecular ordering. The current research focuses on two themes: rheology and solid state NMR.
Theme 1: Solid state NMR of Polymer
The distance between polymer chains, the polymer and inorganic surface play an very important role in determine the final mechanic property. By some well defined experiemntal method, we can control the distance between polymer chains, the polymer and inorganic surface. By dipolar filter and fast MAS, we developed a way to characterize such intimacy, then gave the degree of entanglement of glassy polymer.
Theme 2: Experimental Polymer Rheology
Rheological behaviour of layered silicate / liquid rubber composite gels: their unusual viscosity and temperature dependence; relaxation behaviour after the orientation of the layered silicate. The time resolved experiment to monitor the group of the structure: from sol to gel, and ripenning of the gel structure.