Studies on Structural Analysis, Self-Organizing Capacity and Disassembly ofNanocelluloses

摘要

Cellulose is naturally provided as the crystalline nanofibers with a high tensile stiffness, a high elastic modulus and a low coefficient of thermal expansion (e.g., in the case of cellulose I crystalline, 3~6 GPa,~1 140-150 GPa,~2and 10~(-7)K~(-1),~3respectively). Since various methods and techniques have been developed to produce "nanocelluloses (NCs)", the potentials of NCs for various materials were accordingly developed. Still, there are several major but fundamental issues arising in utilization of NCs as nanomaterials: the length and shape estimation of long and coiled nanofibers having bundles or branches, the shape-dependent self-organizing capacity for fibrous materials, and so on. In this thesis I developed the novel approach by introducing the evaporation induced self-assembly (EISA) techniques to analyze the structures and self-organizing behaviors for nanocelluloses.